There is a cone-shaped sand pile which weighs 3.6 tons and the measured height is 1.2 meters. If the volume of each ton of sand is 0.6 cubic meters, how many square meters is the bottom area of the sand
volume
3.6x0.6 = 2.16m3
Floor area
2.16 △ 1.2x3 = 5.4 square meters