How do you find surface area in cubic centimeters?

Answer 1

What is the surface area of a box whose length is 8, width is 3, and height is 4? This box has 6 faces: two rectangular faces are 8 by 4, two rectangular faces are 4 by 3, and two rectangular faces are 8 by 3. Adding the areas of all these faces, we get the surface area of the box:

8 × 4 + 8 × 4 + 4 × 3 + 4 × 3 + 8 × 3 + 8 × 3 =

32 + 32 + 12 + 12 +24 + 24=

136

A cube is a three-dimensional figure having six matching square sides. If L is the length of one of its sides, the volume of the cube is L3 = L × L × L. A cube has six square-shaped sides. The surface area of a cube is six times the area of one of these sides

What is the volume and surface are of a cube having a side-length of 2.1 cm?

Its volume would be 2.1 × 2.1 × 2.1 = 9.261 cubic centimeters.

Its surface area would be 6 × 2.1 × 2.1 = 26.46 square centimeters