How to Find the Area of Rectangles Using Algebraic Expressions

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Finding the area of a rectangle is an important ability that allows you to do things from completing geometry homework to planning home improvement projects. The area of a rectangle is the amount of space that a rectangle covers. You can find the area of a rectangle using a simple algebraic expression in which "L" x "W" = "X," with X as your variable, or answer.

Things You'll Need

  • Ruler or tape measure
  • Measure the length of your rectangle. Use this measurement as L.

  • Measure the width of your rectangle. This measurement is W.

  • Set up your algebraic expression: L times W = X, or the area.

  • Solve your equation by multiplying L times W to find the area.

Tips & Warnings

  • Use a calculator as necessary.

References

  • Photo Credit Zedcor Wholly Owned/PhotoObjects.net/Getty Images
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