The area of a sector of a circle is and the central angle is .

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

Problem

The area of a sector of a circle is

154\,\text{cm}^2

and the central angle is

60^{\circ}

. (i) Calculate the radius of the circle. (ii) Find the length of the arc of the sector. (iii) Determine the perimeter of the sector.