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M

Manisha 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Find the length of the tangent from a point which is at a distance of 5 cm from the centre of the circle of radius 3 cm?

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Tanay replied | 05/12/2016

So, if you draw a circle it will form a right angle triangle with hypotenuse 5 cm and base 3 cm. using Pythagoras theorem, the length will be equal to 4 cm.

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J

Jitendra 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What is the distance of AB from the centre of the circle if AD is a diameter of a circle and AB is a chord and AD = 34 cm, AB = 30 cm?

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S

Shubhangi 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If AB = 12 cm, BC = 16 cm and AB is perpendicular to BC, then what is the radius of the circle passing through the points A, B and C?

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S

Subhash 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What is the angle of BAC if ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and angle ADC is 140 degree?

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M

Ms 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If arcs AXB and CYD of a circle are congruent, find the ratio of AB and CD?

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K

K 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

A, B and C are three points on a circle. Prove that the perpendicular bisectors of AB, BC and CA are concurrent?

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P

Pravin 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If a line segment joining midpoints of two chords of a circle passes through the centre of the circle, prove that the two chords are parallel?

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M

Mrunal 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Two chords AB and AC of a circle subtends angles equal to 90 degree and 150 degree, respectively at the centre. Find the angle BAC, if AB and AC lie on the opposite sides of the centre?

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S

Saritha 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If a line is drawn parallel to the base of an isosceles triangle to intersect its equal sides, prove that the quadrilateral so formed is cyclic?

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B

Baidyabati 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

A chord of a circle is equal to its radius. Find the angle subtended by this chord at a point in major segment?

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D

D 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

A quadrilateral ABCD is inscribed in a circle such that AB is a diameter and the angle ADC is 130 degree. Find the angle BAC?

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D

Dr. 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If non-parallel sides of a trapezium are equal, prove that it is circle?

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K

Krishna 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If two equal chords of a circle intersect, prove that the parts of one chord are separately equal to the parts of the other chord?

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Answer

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M

Martin 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Find the locus of centres of circles which touch a given line at a given point?

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M

Murugan 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

In two concentric circles, prove that all chords of the outer circle which touch the inner circle are of equal length?

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Answer

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A

Ankita 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Prove that the tangents drawn at the ends of a chord of a circle make equal angles with the chord?

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S

Samadhan 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Find the locus of centres of circles which touch two intersecting lines?

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K

K. 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What is the formula for area of triangle?

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Answer

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N

Nageswara 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Find the locus of the centre of a circle of constant radius (r) which touches a given circle of radius r1: externally; internally, given r1 is greater than r?

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A

Arun 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

If PAB is a secant to a circle intersecting it at A and B, and PT is a tangent, then PA. PB = square of PT?

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U

Urvashi 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Define segment theorem?

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T

Taranum 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Prove that the intercept of a tangent between two parallel tangents to a circle subtends a right angle at the centre?

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A

Akhil 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What do you mean by tangents of a circle?

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Answer

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I

I T Roxaana 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What do you mean by Chords of a circle?

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R

Rajesh 29/10/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

What is the relation between diameter and radius of a circle?

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