Question

The surface area of the square prism.

Answer 1

Answer:

Explanation:

The surface is: the top and bottom with areas of x2 each, and 4 sides of area xy:

f(x,y) = 2x2 + 4xy

f’x = 4x + 4y

f’y = 0 + 4x = 4x

Answer 2

Answer:

The area of one of them is a*a, or a 2 . Since these are all the same, you can multiply one of them by six, so the surface area of a cube is 6 times one of the sides squared. In words, the surface area of a rectangular prism is the area of the six rectangles that cover it.