Question

In fig 2 PA and PB are two tangents drawn from an external point P to a circle with centre c and radius 4 cm. If PA perpendicular to PB, then find the length of each tangent.​

Answer 1

angle CAP = angle CBP = angle APB = 90°

Then, angle ACB = 90°

Adjacent sides(radii) are equal, hence CAPB is a square.

Therefore, AP = BP = 4cm

Hope this answer helps you ^_^ !