Subject :IMO Class : Class 6
The adjoining figure (not drawn to scale) is made up of a square WXYZ and a rectangle ABCD. The area of the square is 64 cm2. The length of the rectangle is 12 cm and its breadth is 9 cm. What is the total area of the unshaded part?
A 52 cm2
B 142 cm2
C 112 cm2
D 98 cm2