Question

plzz give a detailed solution for both

Answer 1

1) APB =40
PAO=90
PBO=90......radius and tangent are perpendicular to each other
AOB=?

APB+PAO+PBO+AOB=360........... sum of all angles of traingle is 360
40+90+90+AOB=360
220+AOB=360
AOB =360-220
AOB= 140

2)AOB=125
COD=?

COD=AOB...........vertically opposite angles
COD=125