What is the difference between the lateral area and surface area?

Lateral area is the area of the sides of a three-dimensional shape, excluding the base and top.

Surface area is the area of all of the sides of a shape.

For example, a the formula for the surface area of a cube is , where is the length of an edge of the cube. However, the formula for the lateral area of a cube is , where is also the length of an edge of the cube.

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23