Question

Q.1. In the given figure. O is the centre of the circle. Find angle BDC.​

Answer 1

Answer:

Angle BDC =60°

Step-by-step explanation:

Given,

△ABC is an equilateral triangle.

∠BAE=60

ABEC is a cyclic quadrilateral.

We know,

∠BAC+∠BEC=180

=>∠BEC=180−60

=120

We know that the angles subtended by an arc on the circumference on the same side are equal.

Therefore,

∠ABC=∠BDC

=>∠BDC=60