With a rectangle and square we can also get the surface area by multiplying width W x length L. Lets try that and see if we get the same answer. The area of the top is the same 700 cm 2.
A cube has six identical square sides.
Since there are 6 identical sides of a cube to find the surface area simply multiply the area of one side times 6. Surface area 2 pi r 2 2 pi r h. The total surface area of hemisphere is equal to sum of half of surface area of sphere and area of its circular base. Total surface area of hemisphere 2 p r 2 p r 2 3 p r 2.