Question

the length of a chord of circle is 24cm if distance of chord from the centre is 5cm than the radius of circle is​

Answer 1

Answer:

5cm

Step-by-step explanation:

Answer 2

Answer:

13cm

Step-by-step explanation:

let chord be AB = 24cm

center be O

mid point of AB be c,AC=BC=12cm

distance from center O to chord will be from O to C = 5cm

join OA , we get right angle triangle OCA

ACC to Pythagoras theorem,

OA^2 = OC^2+AC^2

OA^2 = 5^2+12^2

OA^2 = 25+144

OA^2 = 169

OA = √169 = 13cm

hence radius= 13cm