Question

2. Find the length of a chord which is at a distance of 3 cm from the centre
of a circle of radius 5 cm.​

Answer 1

Step-by-step explanation:

OA2 = OM2 + AM2 (The line drawn through the centre of a circle to bisect a chord is perpendicular to the chord.)

AM2 = 52 - 32 = 16

AM = 4 cm

AB = 2AM = 2 x 4 cm = 8 cm