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Answered on 24 Feb Learn Playing With Numbers
Sadika
To find the factors of a number, you need to identify all the numbers that divide the given number evenly, including 1 and the number itself.
Let's find the factors for each:
(a) Factors of 12: 1, 2, 3, 4, 6, 12
(b) Factors of 18: 1, 2, 3, 6, 9, 18
These are all the possible factors of 12 and 18.
Answered on 24 Feb Learn Practical Geometry
Sadika
To draw an angle of 120° and then construct an angle of 105°, follow these steps:
Draw an Angle of 120°:
Construct an Angle of 105°:
Now, you have both the 120° angle and the constructed 105° angle.
Answered on 24 Feb Learn Practical Geometry
Sadika
To draw triangle ABC and its perpendiculars from each vertex onto the opposite sides, follow these steps:
Draw triangle ABC:
Draw perpendiculars from each vertex onto the opposite sides:
Now, you have triangle ABC with perpendiculars AD, BE, and CF drawn from vertices A, B, and C respectively onto the opposite sides BC, AC, and AB.
To determine if these perpendiculars are concurrent (passing through the same point), you can construct the altitudes of the triangle, which are known to be concurrent at the orthocenter.
If the perpendiculars AD, BE, and CF intersect at a single point, then they are concurrent, and that point is the orthocenter of triangle ABC. If they do not intersect at a single point, then they are not concurrent.
Please note that the concurrency of perpendiculars in a triangle depends on the specific properties of the triangle. In some cases, the perpendiculars may be concurrent, while in others, they may not be. You would need to verify this for the specific triangle you've drawn.
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Answered on 24 Feb Learn Knowing our Numbers
Sadika
The greatest 6-digit number is 999,999.
To find its successor, we simply add 1 to it:
999,999+1=1,000,000999,999+1=1,000,000
So, the successor of the greatest 6-digit number, 999,999, is 1,000,000.
Answered on 24 Feb Learn Ratio and Proportion
Sadika
To find the third term in the proportion when the first, second, and fourth terms are given, we can use the formula for proportions.
In a proportion, the product of the means is equal to the product of the extremes. Therefore, we have:
32/112=x/217
Where x is the third term that we need to find.
To solve for x, we can cross multiply:
32×217=112×x32×
6944=112x
Now, divide both sides by 112:
x=6944/112
x=62
So, the third term in the proportion is 62.
Answered on 24 Feb Learn Basic Geometrical ideas
Sadika
The least number of line segments required to make a polygon is 3.
A polygon is a closed shape formed by straight lines. The simplest polygon is a triangle, which has three sides (and therefore three line segments).
So, with three line segments, you can form the smallest polygon, which is a triangle.
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Answered on 24 Feb Learn Basic Geometrical ideas
Sadika
Certainly! Below is a rough sketch of triangle △ABC△ABC with its medians:
A
/ \
/ \
M2/_____\M3
/ \
/ G \
/___________\
B M1 C
In the sketch, M1M1, M2M2, and M3M3 represent the medians of the triangle △ABC△ABC.
To name the medians:
Answered on 24 Feb Learn Understanding elementary Shapes
Sadika
If you start facing south and turn clockwise to west, you make a 90-degree clockwise turn to the west.
Since a right angle measures 90 degrees, you make exactly one right angle turn during this movement from south to west.
So, you make 1 right angle when you start facing south and turn clockwise to west.
Answered on 24 Feb Learn Understanding elementary Shapes
Sadika
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Answered on 24 Feb Learn symmetry
Sadika
A circle has an infinite number of lines of symmetry.
Any line passing through the center of the circle will divide it into two equal halves, making it symmetric. Since there are infinitely many lines that can pass through the center of a circle, a circle has an infinite number of lines of symmetry.
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