PQ and RS are two mutually pre pendicular chords of a circle. `/_QPR=50^@` find`/_PQS`.

In the picture a triangle is formed by two mutually perpendicular tangents to a circle and a third tangent. Prove that the perimeter of the triangle is equal to the diameter of the circle.

The radius of a circle with centre O is 8cm.P is a point outside the circle. PQ and PR are the tangents drawn from P to the circle.If /_QOR = 60^@ then find the lengths of PQ, PR andOP.

In the figure,PQ is the diameter and RS is a tangent to the circle. .If /_SPQ=34^@ ,find /_SQP .

In the figure,PQ is the diameter and RS is a tangent to the circle. .If /_SPQ=34^@ ,find /_RSQ .

In the figure,PQ is the diameter and RS is a tangent to the circle. . If /_SPQ=34^@ ,find /_SRP .

Circle with radius 13 cm is drawn. If AB and CD are two parallel chords of length 24cm and 10cm respectively on the same side of the center, find the distance between them.

Let PQ be a tangent to a circle at A and AB be a chord. Let C be a point on the circle such that /_BAC = 54^@ and /_BAQ = 62^@. Find /_ ABC .

AC and BC are two equal chords of a circle with diameter AB.If the equal chords have lengths 10cm find the area of the circle

In triangle PQR, angle R=90 , PR=12cm, QR=16cm and RS is perpendicular to PQ. 1) . Find the length of PQ. ii) Find the length of PS and SQ. ii) Find the length of RS.

'In a circle, two parallel chords of lengths 4 and 6 centimetres are 5 centimetres apart. What is the radius of the circle?