Question

The radius of a circle is 12cm.A chord of the circle is 16cm long.Calculate the distance of the chord from the centre of the circle.Give the answer to 1 decimal point.

NO LINKS PLEASE!!!
​

Answer 1

the distance d of the chord from the center of the circle is:

d^2 = 12^2 - (16/2)^2
d^2 = 144 - 64
d^2 = 80
d = 8.9 cm