Question

2. If tangents PA and PB from a point P to a circle with centre O are
inclined to each other at an angle of 70°, then Z POA is equal to
cent
March
(A) 70°
(B) 55°
(C) 100°
(D) 40°
​

Answer 1

Answer:

(B) 55

answer

POA + PAO + APO =180

POA + 90 + 35 = 180

POA + 125 = 180

POA = 180 - 125

POA = 55

Answer 2

Answer:

B

Explanation:

In triangle APO

angle A=90

angle P=35(half of 70)

angle O=?

A+P+O=180(The sum of triangle is 180)

90+35+O=180

O=55