Question

inthe given figure O is the centre of two concentric circles. A line 'l' cuts the circle at A,B,C,D as shown in the figure. OP is perpendicular to AD. Given OA=34 cm , OP= 16 cm and AB = 18 cm
Find:
1. length of chord AD
2. length of chord BC
3. radius of the smaller circle ​

Answer 1

Answer:

firstly find the length of hypotenus of triangle AOC then multiply it with 2 u will get length of cord AD