Question

From a circular card sheet of radius 28 cm two circle of radii 7 cm and a rectangle of length 3 cm and breadth 2 cm removed find the area of the remaining sheet

Answer 1

area of circular sheet = 744
area of 2 circle = 308
area of rectangle = 6
area of  2 circles = area of rectangle
308+6 = 314
area of circular sheet - 314 = area of remaining sheet
744-314=430
so,
area of remaining sheet = 430