Question

Angle subtended in a semi circle by the largest chord of a circle is.

• A. Obtuse angle
• B. Right angle
• C. An acute angle
• D. Supplementary

Answer 1

Answer: (B)

Right angle

The largest chord of any circle is its diameter, say AB.

Angle subtended by a chord at centre is twice the angle subtended by that chord at any point on the circumference.

Angle subtended by AB at centre O is ${180}^{\circ }$.

It follows that APB is 90°.

So it follows that the angle in a semicircle is always a right angle.

option B is answer.