What is the angle subtended by the diameter AB at the circumference of the circle?
90∘
45∘
60∘
Data inadequate
The diameter of a circle subtends an angle of 90∘ at any point on circle. So the angle is 90∘.
A circle has radius 5 cm. A section of its circumference has length π cm. What is the angle subtended by this section at the centre?
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