Question

Find the area of shaded region from

the adjacent figure of 42 cm​

Answer 1

Area of square= (side)²

= (42)² = 1762cm²

Now in circle

Diameter is 42

then radius= 42/2= 21

Area of circle = πr²

=22/7×21×21

= 22×3×21

= 1386 cm²

Area of shaded region

Area of square - Area of circle

1762-1386

372cm²

So the area of shaded region is 372 cm²