From a circular sheet of radius 4 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet. (Takeπ = 3.14)
Total area = 3.14(4)2 = 50.24 cm2
area removed = 3.14(3)2 = 28.26 cm2
Area of the remaining sheet = total area - area removed = 50.24 - 28.26 = 21.98 cm2