Question

Three circles are placed in a rectangle with width 12 cm, as shown below. Find the area of the shaded region. Use the value 3.14 for pi, and do not round your answer.

Answer 1

Answer: area of rectangle

7x(7x2x3)

=294

area of 3 semicircles

7x2x3.14x0.5x3

=65.94

Answer

294-65.94

=228.06cm2

Explanation: