Question

Find the length of the chord which is at a distance of 9cm from the center of a circle of radius 15cm.

Answer 1

Answer:

R = hypotenuse

Distance= perpendicular

1/2 chord = base

chord×1/2 = 15²-9²

chord = {√( 225 -81)}×2

chord= (√ 144 )×2

chord= 12×2

chord =24 cm