Question

If pa and pb are two tangents drawn with centre o such that angle apb = 50, find angle oab.

Answer 1

the answer is 65 degrees

Answer 2

Answe

Step-by-step explanation:

pab+pba+50deg=180deg

ap=ab tangent to ext pt r =

there4

ang pab= ang pba

2 ang pab+50 deg= 180deg

2 pab = 130deg

pab= 65 deg

now in

ang oab+ang pab =90 deg  .....tangent to radius is90deg

ang oab+65=90deg

ang oab=25 deg