Question

The length of a tangent from a point A at distance 5cm from the centre of the circle is 4cm.Find the radius of the Circle?​

Answer 1

Answer:

(OA) ^2 = (AC) ^2 + (OC) ^2

(5) ^2 = (4) ^2 + OC^2

25 = 16 +(Oc) ^2

25-16 = (OC) ^2

√9 = OC

3cm = OC

RADIUS OF THE CIRCLE = OC = 3cm

hope it will help you

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