Question

All three questions...​

Answer 1

Answer:

Now Area of shaded region = Area of Square - 4 x the area of quarter circle

Step-by-step explanation:

I'm going to tell you how to do it. Solving part is yours.

If PQRS is the mid points of the sides then the side is divided in half ie. 25 + 25.

Now area of 4 Quater Circle(Circle) = 4 x 1 / 4 π r²

where r = 25cm

and area of the square = (side)²

side = 50cm

Now Area of shaded region = Area of Square - 4 x the area of quarter circle