Objective: I know how to calculate rectangle & square problems involving length, width, perimeter and area.

The perimeter of a rectangle is the sum of the lengths of the sides of the rectangle. The formula is

*P* = 2*l* + 2*w *

Area measures the size of a surface. It is measured in square units, The area of a rectangle is given by the formula

*A = lw *

Read the lesson on area and perimeter of rectangles if you need to know more.

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