Question

What is the angle subtended at the centre of a circle?

Answer 1

Answer:

The angle subtended at the centre is the angle subtended by an arc or a chord or a sector at the centre of a circle. ... In such cases, the central angle is 180° and the angle subtended at the circle is 90°. So logically, the angle subtended at the semicircle is right angle, that's 90°.

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