+129839 a) It's a little tough to tell, but I'm assuming that the shaded area = (1/8) of a square with a side of 2.2 cm =
2.2^2 / 8 = .605 cm^2
b) The shaded area = area of a square with a side of 10 cm - area of a triangle with a base of 8 cm and a height of 6 cm - area of a quarter circle with a radius of 5 cm ..... so we have....
10^2 - (8 * 6)/ 2 - pi (5^2)/4 = about 56.365 cm^2
