Question

ln the given figure, ABC is a triangle in which angle BAC =30.show that BC is equal to the radius of the circimcircle of triangle ABC, whose centre is O.​

Answer 1

Step-by-step explanation:

The angle subtended by a chord at center is double the angle subtended by it on any other point on the major segment of circle.

So ∠BOC = 60∘

ΔBOC

OB = OC

The sides are equal and included angle is 60∘

So the triangle is eqquilateral

Hence BC = OB(radius)

Hope it helps you mate..