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Ashwani replied | 17 hrs ago

According to Mathematician Pythagoras "The Sum of the Squares of the Altitude and the Base of any Right angled triangle must be equal to the Square of the Hypotenuse."Thus we can say that if ABC is a right angled triangle at B then AC^2 =(AB^2)+(BC^2). sometimes also written as h^2 = b^2 + p^2.

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Pradeep replied | 15 hrs ago

The Pythagorean Theorem is a statement about triangles containing a right angle. The Pythagorean Theorem states that:
"The area of the square built upon the hypotenuse of a right triangle is equal to the sum of the areas of the squares upon the remaining sides."

Bhaskara's Proof of the Pythagorean Theorem

In this proof, Bhaskara began with a right triangle...  more»
The Pythagorean Theorem is a statement about triangles containing a right angle. The Pythagorean Theorem states that:
"The area of the square built upon the hypotenuse of a right triangle is equal to the sum of the areas of the squares upon the remaining sides."

Bhaskara's Proof of the Pythagorean Theorem

In this proof, Bhaskara began with a right triangle and then he drew an altitude on the hypotenuse. From here, he used the properties of similarity to prove the theorem.

Now prove that triangles ABC and CBE are similar.
It follows from the AA postulate that triangle ABC is similar to triangle CBE, since angle B is congruent to angle B and angle C is congruent to angle E. Thus, since internal ratios are equal s/a=a/c.
Multiplying both sides by ac we get
sc=a^2.

Now show that triangles ABC and ACE are similar.
As before, it follows from the AA postulate that these two triangles are similar. Angle A is congruent to angle A and angle C is congruent to angle E. Thus, r/b=b/c. Multiplying both sides by bc we get
rc=b^2.

Now when we add the two results we get
sc + rc = a^2 + b^2.
c(s+r) = a^2 + b^2
c^2 = a^2 + b^2,
concluding the proof of the Pythagorean Theorem. «less

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Karthik 26/12/2016 in  Class IX-X Tuition

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Yogita replied | 1 day ago

Yes, it is imaginary and is defined using iota(i) sign.

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Pradeep replied | 16 hrs ago

Yes.

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Umender 2 days ago in  Class IX-X Tuition

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Ashish Kumar replied | 10 hrs ago

What is your location?

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Kanupriya replied | 5 hrs ago

Fee depends on location and on number of days per month.

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Bitu 04 Jan in  Basic Mechanical Engineering(BTech Tuition), Class IX-X Tuition, Class XI-XII Tuition (PUC), More... Advanced Placement Tests Coaching classes Physics(Advanced Placement Tests Coaching classes)

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N.varalakshmi replied | 4 days ago

Ice is less density than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

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Heena replied | 20 hrs ago

Because volume of ice is more than water.

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Shyamala replied | 03 Jan

Rs. 400 is enough.

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Modi replied | 11 Jan

You should take Rs 200 per hr but teaching shall be min 2 hr.

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Raju replied | 06 Jan

Mean, Median and Mode.

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Neera replied | 12 Jan

The most common measures of central tendency are the arithmetic mean, the median and the mode.

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Rama Krishna replied | 09/12/2016

Harmonic Mean is the reciprocal of the arithmetic mean of the reciprocals. In other words, it is the number of observations, divided by the sum of reciprocals of the observations.

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Abhishek replied | 10/12/2016

Harmonic mean = n/{(1/a1)+(1/a2)+(1/a3)...................+1/an}.

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Rajkmar 28/10/2016 in  Class IX-X Tuition

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Alka replied | 23/12/2016

sin 45+cotâ?¡45= ( 1/â??2)+1

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Neera replied | 12 Jan

With reference to image,
sin 45 = 1/(root(2))
cot 45 = 1.
therefore, sin 45+cot 45 = 1/(root(2)) + 1
or on rationalising,
= [(1+(root(2)))/(root(2))]*[(root(2))/(root(2))]
= [root(2)(1+(root(2)))]/2

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Rama Krishna replied | 09/12/2016

Mode:
A statistical term that refers to the most frequently occurring number found in a set of numbers. The mode is found by collecting and organising the data in order to count the frequency of each result. The result with the highest occurrences is the mode of the set.

Eg: 3, 3, 6, 9, 16, 16, 16, 27, 27, 37, 48 -------------------Mode is 16

3, 3, 3, 9, 16,...  more»
Mode:
A statistical term that refers to the most frequently occurring number found in a set of numbers. The mode is found by collecting and organising the data in order to count the frequency of each result. The result with the highest occurrences is the mode of the set.

Eg: 3, 3, 6, 9, 16, 16, 16, 27, 27, 37, 48 -------------------Mode is 16

3, 3, 3, 9, 16, 16, 16, 27, 37, 48-------------------------Mode is 3 and 16 «less

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Abhishek replied | 10/12/2016

The mode is the value that appears most often in a set of data.

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Rama Krishna replied | 09/12/2016

Definition Of Frequency:
The number of occurrences of a particular item in a set of data is called Frequency.

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Abhishek replied | 10/12/2016

It is number of times a data has occurred in a set of data is called frequency.

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Md replied | 16/12/2016

Square root of x & y.

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Gourav replied | 27/12/2016

GM=nth root(product of n numbers)
ex:-
Find GM of 2,18?
sol: number of terms: 2 i.e, 2,18.
therefore GM=square root of (2 x 18)
GM=sqrt (36).
Hence, GM=6.

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Ranganath replied | 30/12/2016

Not possible because, sum of all 3 angles together, should be 180 degrees.
Here, sum of the the given 2 angles is > 180 degrees.

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Parshva replied | 01 Jan

To form a triangle the sum of interior angles of a triangle is equal to 180 but as the scenario here is the sum of only given two triangles is 185 degree then definitely it is not possible to build a triangle with given angles.

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Rishu 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Karuna replied | 24/11/2016

The middle most value in a set of data arranged in ascending order is known as median.

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Rajendran replied | 25/11/2016

Denoting or relating to a value or quantity lying at the midpoint of a frequency distribution of observed values or quantities, such that there is an equal probability of falling above or below it.

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Ranganath replied | 30/12/2016

Rs 4,500 to 6,000 for together.

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Modi replied | 11 Jan

Rs 5000.00 per month excluding Sunday.

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Chilla Rajesh replied | 08/12/2016

The size or range of the class is called class interval.

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Ankit replied | 08/12/2016

Class limits are the smallest and largest observations (data, events etc) in each class. Therefore, each class has two limits: a lower and upper.
Class interval is the difference between the upper and lower class boundaries of any class.

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Chilla Rajesh replied | 11/12/2016

Geometric mean will use if the data terms in fractions and harmonic mean will use for extreme value of given data.

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Hyder replied | 14/12/2016

Choosing the correct mean is essential to correctly estimating the central tendency of a population or calculating investment returns. Tags: Average, Economics, geometric mean, harmonic mean, mean. 30 Comments to “Differences between Arithmetic, Geometric, and Harmonic Means.

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K 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Reflection

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Abhishek replied | 10/12/2016

2nd.

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Ranganath replied | 30/12/2016

Its the 2nd quadrant (IInd).

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Meenakshi 08/11/2016 in  Class IX-X Tuition, Science(Class IX-X Tuition), Data Science Classes

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Abhishek replied | 10/12/2016

Newton's Law is applicable to a body either when it is at rest or at motion, these are two states of a body.
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is...  more»
Newton's Law is applicable to a body either when it is at rest or at motion, these are two states of a body.
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net force acting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.
The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum (mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force). For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a:
F = m * a
For an external applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways.
The third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. «less

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Syed replied | 14/12/2016

There are 3 laws of motion:
First is law of inertia, second is f=ma, and third law is every action has equal and opposite reaction.

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Nilesh 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Abhishek replied | 10/12/2016

Branch of mathematics which deals with collection, representation, analysis and interpretation of data.

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Ravi replied | 14/12/2016

Statistics is the study of the collection, analysis, interpretation, presentation and organization of data.

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Anjali replied | 12/12/2016

Mean, median, mode.

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Rahul replied | 13/12/2016

Mean, mode, median, frequency, class interval, class size,
step deviation mean method, continuous distribution, discrete distribution, etc.

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Saloni replied | 14/12/2016

Primary data refers to a that which we take directly from the source and secondary data is obtained from a primary data.

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Aasiya replied | 14/12/2016

Primary data is the data which you make by urself.and secondary data is the data which is made by others and you are using it.

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Mayank replied | 28/11/2016

Arithmetic Mean = Sum of total observations/ No of observations.

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Abhishek replied | 10/12/2016

A.M. = Sum of total observations/ No of observations.

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Igno 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Similarity

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Mahfooz Alam replied | 08/12/2016

If two or more triangles have same shape and size they are called congruent triangles.
There are four types of congruency rules.
If two sides of a triangle equal to other's corresponding sides angles between their corresponding sides also
Equal they will be congruent.
If two triangles have all corresponding sides are equal they're called congruent triangles.

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Jyoti replied | 09/12/2016

In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
More formally, two sets of points are called congruent if, and only if, one can be transformed into the other by an isometry, i.e., a combination of rigid motions, namely a translation, a rotation, and a reflection. This...  more»
In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
More formally, two sets of points are called congruent if, and only if, one can be transformed into the other by an isometry, i.e., a combination of rigid motions, namely a translation, a rotation, and a reflection. This means that either object can be repositioned and reflected (but not resized) so as to coincide precisely with the other object. So two distinct plane figures on a piece of paper are congruent if we can cut them out and then match them up completely. Turning the paper over is permitted.
In elementary geometry the word congruent is often used as follows. The word equal is often used in place of congruent for these objects.
Two line segments are congruent if they have the same length.
Two angles are congruent if they have the same measure.
Two circles are congruent if they have the same diameter. «less

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Mamata replied | 10/12/2016

Equilateral triangle has equal side. So, measure 6 cm on compass and draw 3 sides and join them and named it as AB , BC, CA.

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Shahid replied | 10/12/2016

AB= 6 cm, BC=6 cm,CA=6 cm.

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Dimple Aggarwal replied | 01/12/2016

A, B, C, D, E,H, I, K, M, O, T, U, V, W, X, Y.

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Nisarg replied | 01/12/2016

English alphabets having symmetry are:
A, B, C, D, E, K, M, T, U, V, W, Y have one line of symmetry.
H, I, X have two lines of symmetry.
And F, G, J, L, N, P, Q, R, S, Z have neither horizontal nor vertical lines of symmetry.

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