# How to find surface area

## What is the formula for surface area?

Variables:

Surface Area Formula | Surface Area Meaning |
---|---|

SA=2B+Ph | Find the area of each face. Add up all areas. |

SA=B+12sP | Find the area of each face. Add up all areas. |

SA=2B+2πrh | Find the area of the base, times 2, then add the areas to the areas of the rectangle, which is the circumference times the height. |

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Sep 17, 2020

## How do you find the surface area quickly?

## What is the surface area of a rectangle?

To find the area of the rectangle, just multiply the two edges together.

**Area (bottom edge) = length times width = lw**. Going back to our example, the area of the bottom face is 4 inches x 3 inches = 12 square inches.## How do you find the surface area of a square?

## What is the surface area of the pool?

4. Calculate Surface Area. For rectangular pools,

**multiply the first measurement by the second to**get the pool area. For round pools, multiply the diameter by the depth and then multiply by 3.14.## How do you find the surface area of a solid?

To determine the surface area of a solid, we

**take the sum of the area of all the surfaces of a 3-dimensional solid object.**