Question

A wire of length of 18 cm is bent to form a sector of radius 4 cm. Find the area of the sector ?​

Answer 1

Length of the wire, l = 18cm

Radius, r = 4cm

Area of sector in length of arc = $\frac{1}{2} (l)(r)$

= $\frac{1}{2} (18)(4)$

= $1(9)(4)$

= $36$