Question

If the length of the longest side of the rectangle is 20cm find the shaded area to the nearest hundredth

Answer 1

Explanation:

diameter of each circle = 20/2 = 10 cm

rectangle is 20 cm by 10 cm

area of rectangle = 20×10 = 200 cm²

radius of each circle = 10/2 = 5 cm

area of each circle = πr² = 25π cm²

shaded area = 200 - 2(25π) = 200 - 50π =42.92 cm²