Question

A chord of a circle is 30 cm long. Its distance from the center is 8 cm. Find the radius of the circle

Answer 1

Step-by-step explanation:

hope it helps you.....

Answer 2

Answer:

chord AB is 30 cm long

according to the theorem : perpendicular drawn from the centre of the circle to the chord bisects the chord

therefore , AM = 15cm

In triangle OMA ,

OA2= OM2 + AM2

OA2 = 8 square + 15 square

OA 2 = 64+ 225

= 289

taking square root

OA = 17 cm