Question

find the area of the shaded region.

Answer 1

Given
Length of rectangle =18
Breath of rectangle =10
Area of rectangle =lxb

Area=18x10=180cm²

Radius of circle =r
Area of circle =
$\pi {r}^{2}$
=3.14xr²

Area of Shaded region =area of rectangle - area of circle

=180-3.14 r²

I m taking Radius as 4cm

So 180-(3.14x4²)

=180-50.29
=129.71cm²