a) pp = (16^2 * v3) : 4 = 64v3
8^2 + h^2 = 17^2
h^2 = 289 - 64
h^2 = 225
h = 15
pb = [(16 * 15) : 2] * 3 = 360
pc = 360 + 64v3
b) pp = 6 * 6 = 36
3^2 + h^2 = 10^2
h^2 = 100 - 9
h^2 = 91
h = v91
pb = [(6 * v91) : 2] * 4 = 12v91
pc = 36 + 12v91
c) pp = (6 * 4^2 * v3) : 4 = 24v3
2^2 + h^2 = 9^2
h^2 = 81 - 4
h = v77
pb = [(4 * v77) : 2] * 6 = 12v77
pc = 24v3 + 12v77
