Ab = 1800 - 1476 = 324 cm²
Ab = l² = 324
l = √324 = 18 cm
Pb = l x 4 = 18 x 4 = 72 cm
A lat = Pb x a p / 2
1476 = 72 x a p / 2 = > 36ap
ap = 1476/36 = 41 cm
ab = l/2 = 18/2 = 9 cm
h² = ap² - ab² = > 41² - 9² = 1681 - 81 = 1600
h = √1600 = 40 cm
V = Ab x h / 3 = > 324 x 40 / 3 = 12960/3 = 4320 cm ³
