How do you find the area of a rectangle?


Quick Answer

The area of a rectangle is calculated from its width and height. Since a square is also a rectangle, the area of such polygons is also determined using the formula "area = width x height."

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Full Answer

  1. Find the height and width of the rectangle

    If this information is not given, measure the sides or refer to the provided graph.

  2. Plug the numbers into the formula

    The product of the length and the width is the area of the rectangle. For example, a rectangle that is 6 inches long and 8 inches wide has an area of 48.

  3. Express the area in square units

    Since area is a surface measurement, it must be expressed in square units. In this example, the final measurement is 48 square inches.

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