(a) In the figure (i) given below, O is the centre of the circle and AB is a tangent at B. If AB = 15 cm and AC = 7.5 cm, find the radius of the circle.
(b) In the figure (ii) given below, from an external point P, tangents PA and PB are drawn to a circle. CE is tangent to the circle at D. If AP = 15 cm, find the perimeter of the triangle PEC.
Solution:
More Solutions:
- The tangent at C meets AB produced at Q, ∠CAB = 34°.
- O is the center of the circumcircle of triangle XYZ.
- Two chords AB, CD of a circle intersect internally at a point P.
- PT is a tangent to the circle. Find TP if AT = 16 cm and AB = 12 cm.
- Given below, PAB is secant and PT is tangent to a circle.
- Two chords AB, CD of a circle intersect externally.