Question

What is central angle?

Answer 1

Central angle.

The angle subtended at the center of a circle by two given points on the circle. It's arms are the radii of the circle.

Formula to compute the central angle,$\theta$ is:

$\theta =\frac{\mathrm{Arc}\mathrm{length}\times 360°}{2\pi \times r}$

Here, $r$ is radius of the circle.

Thus, the angle subtended at the center of a circle by two given points on the circle is called central angle.