Question

25 rings, each of radius 4/3 cm placed inside a square of side 12 cm . find the occupied area left in square.​

Answer 1

Area of square = side × side

= 12× 12 = 144cm^2

Area of circle = pi × r × r

= 22/7 × 4/3 × 4/3

=. 5.58cm^2

Now area of 25 rings are = 5.58 × 24

=. 133.92cm^2

Area left = area of square - area of circles

= 144 - 133.92

= 10.08 cm^2

Thanks