What is the angle subtended by the diameter on the circumference of the circle?
90º
45º
600
Data inadequate
Angle in a semicircle is always a right angle.
The angle subtended by an arc at the centre is 120 degrees. The angle subtended by it on the circumference is
A circular wire of diameter 10cm is cut and placed along the circumference of a circle of diameter 1 metre. The angle subtended by the wire at the centre of the circle is equal to