2nd October 2019

15

# What is the formula for the area?

Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared. If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches. (Square inches can also be written in2.)

Also to know is, what is the formula for perimeter?

A Rectangle's Perimeter. The perimeter of a rectangle is equal to the sum of all the sides. However, since a rectangle's opposite sides are congruent, we only need to know the length and width. We can write this in an equation this way: P = l + w + l + w.

How do you find the perimeter given the area?

Method 2 Calculating the Perimeter When Area is Known
1. Know the formula for the area of a square. The area of any rectangle (remember, squares are special rectangles) is defined as its base times its height.
2. Find the square root of the area.
3. Multiply the side length by 4 to find the perimeter.
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