Question

Radius of circle is 20cm and distance of a chord form the centre is 12 CM the length of a chord is

Answer 1

Given A circle with center O Radius OA=10 cm chord AB=12 cm.

To find the distance OM of the chord from O

OM is perpendicular to chord AB

As perpendicular from the center Na chord bisect the chord. So AM= AB/2 =6 cm

In right angled triangle AMO

AO² =AM² +OM²

⇒10² =6² +OM²

⇒100=36+OM²

⇒OM² =100−36

⇒OM² =64

OM=8cm