Page 5 - Lesson note 5 Angle subtended by arc Ch.- 10 Circle

(As The angle subtended by an arc at the centre is double the angle
Subtended by it at any point on the remaining part of the circle.)

Question 1: In figure, O is the centre of the circle. If APB = 500, find AOB and OAB.

Solution:
APB = 50⁰ (Given)
As The angle subtended by an arc at the centre is double the angle
Subtended by it at any point on the remaining part of the circle.)