Question

A chord of length 14 cm is at a distance of 6 cm
from the centre of a circle. Then what is the
length of another chord at a distance of 2 cm
from the centre of the circle?

Answer 1

Answer:

by using Pythagoras theorem r=5cm

so another cord is equal 2root21

Answer 2

hence radius of the r= √7^2+6^2=√85

Again by Pythagoras theorem

length ED =√85-4=9

hence the length of another chord at a distance of 2 cm from the centre =2×9=18