Question

PT and PR are tangentsfrom an external point P to a circle with center at O.Tangents to this circle at a point S cuts PT and PR at A and B respectively. If angle APB is 40 degrees what is the measure of the angle AOB?

Answer 1

Answer:-

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

Answer 2

Answer:

Step-by-step explanation: