Question

From the figure, PA is a tangents to the circle, PA= 4cm, OA=5cm. What is the length of the radius

Answer 1

Answer:

Correct option is

B

4 cm

From figure,

CA is perpendicular to AP and CB is perpendicular to BP 

Again AC = BC = 4 (radius of the circle)

Also AP = PB = (Tangents from point P)

So, BPAC is a square.

=> AP = PB = BC = CA = 4 cm

So, length of tangents are 4 cm each

therefore option B will be the answer.