Question

5. In the given figure,the radius OA
$oa = 5cm$
and
chord AB=8cm. Find the distance of the chord
A B from the centre o​

Answer 1

Radius =5cm

Chord AB=8cm

Take mid point of chord such as M

AM=MB=8/2=4

Now

AMO is a right angle triangle

Applying Pythagoras theorem

OA2=AM2+OM2

5^2=4^2+OM2

25=16+ OM2

OM2=25-16

OM2=9

OM=sqrt9

OM=3cm