Definition: A perimeter is the distance around the outside of a two dimensional figure. It is found by taking the sum of the side lengths.
If the side lengths of a quadrilateral are A, B, C and D,
Perimeter = A + B + C + D
Example: Find the perimeter of the rectangle:
We know perimeter is the sum of a figure’s sides, and that rectangles have two pairs of equal sides.
Step 1: Write an equation to find the perimeter based on the properties of rectangles.
Perimeter = 5 + 5 + 2 + 2
Step 2: Solve to find the perimeter of the figure.
Perimeter = 14
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