Question

3. Find the value of p in the following figures.
(a)
(b)
50°
р
р.​

Answer 1

Answer:

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

RD sharma class 9 maths chapter 16 ex 16.4 question 1

Solution:

∠APB = 500 (Given)

By degree measure theorem: ∠AOB = 2∠APB

∠AOB = 2 × 500 = 1000

Again, OA = OB [Radius of circle]

Then ∠OAB = ∠OBA [Angles opposite to equal sides]

Let ∠OAB = m