Question

d) Area of shaded region=-
e) Perimeter of square
3cm​

Answer 1

Step-by-step explanation:

Let A be the area of shaded region and B be the area of one quarter circle.

4B= Area of circle of radius 6

=π(6)

2

=36π

A+4B= Area of PQRS(square)

⇒A+36π=12

2

=144

∴A=144−36π cm

2

So, area of shaded region=144−36π cm

2