If radii of the two concentric circles are 15cm and 17cm, then find the length of each chord of one circle which is tangent to one other. 2. If a tangent PQ at a point P of a circle of radius 5cm meets a line through the centre O at a point Q such that OQ = 12 cm then find the length of PQ. 3. From a point P, two tangents PA and PB are drawn to a circle C(O,r) . If OP =2r, then what is the type of Triangle APB.
(1).
Kindly refer the following link :
(2).Refer the solution of part (10 in the given link for the similar type of query :
https://www.meritnation.com/ask-answer/question/a-tangent-pq-at-a-point-p-of-a-circle-of-radius-5cm-mee/circles/3542666
(3). https://www.meritnation.com/ask-answer/question/from-an-external-point-p-two-tangents-pa-and-pb-are-drawn-t/math/1905646