A sector of a circle has length of arc and its area is

MATHEMATICS · Multi-part · CBSE · Mathematics · Areas Related to Circles · Areas Related to Circles

Problem

A sector of a circle has length of arc

22\,\text{cm}

and its area is

154\,\text{cm}^2

. (Take

\pi = \frac{22}{7}

.) (i) Determine the radius of the circle. (ii) Hence, find the measure of the central angle of the sector.