Question

12) If tangents PA and PB from a point P to a circle with a centre o are inclined to each other at an
angle of 80°, then find angle POA.
13) Find an if a = 7, d = 3 and n = 8.​

Answer 1

Answer:

12) 50 degree

Step-by-step explanation:

first you should know that

angle between the tangents is 2(theta)

you make a line joining centre and point P

this line bisects the angle b/w tangents

now apply angle sum property of triangle

in triangle POA

90+40+x=180

x=50