Question

Find the area of the sector (in $c{m}^2$) whose are length and radius are $10cm$ and $5cm$ respectively

Answer 1

Here, Radius, $r=5cm$
Length of arc, $l=10cm$
Area of the sector, $A=\frac{r}{2}\times$ Length of arc
$=\frac{5}{2}\times 10=25$
$\therefore$ Area of sector is $25c{m}^2$.