Question

If $ABC$ is a triangle in which $\angle BAC={30}^{\circ }$.Then state whether $BC$ is the radius of the circumcircle of $\Delta ABC$, whose centre in $O$ is True/False

• A. True
• B. False

Answer 1

The correct option is A True

The given triangle has ${30}^{\circ }$ at one of the vertex

So the angle subtends an angle of ${60}^{\circ }$ at the center of the circum circle

The Radius that pass through $B$ and $C$ thus form a Equilateral triangle

Hence the radius is equal to $BC$