Question

AB is minor arc in a circle with centre P. R is the point on the major arc except A and B. If ∠APB = 150, then ∠ARB = ______ (A) 150 (B) 75 (C) 50 (D) 100​

Answer 1

Step-by-step explanation:

The angle subtended by an arc at the cente is double the angle subtended by it at any point on the remaining part of the circle (Thm)

∴ ∠APB = 2 ∠ARB

∠ARB = 150/2 = 75°