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How to Calculate Trapezoid Area

Find the area of a trapezoid from parallel sides and height.

The Formula

A = ½(a+b)×h

The trapezoid area formula uses the mathematical relationship: A = ½(a+b)×h. Each variable in the formula represents a measurable quantity that affects the final result.

Step-by-Step Method

  1. 1Identify all input values needed for the trapezoid area calculation.
  2. 2Substitute your known values into the formula: A = ½(a+b)×h.
  3. 3Perform the arithmetic operations in the correct order (PEMDAS/BODMAS).
  4. 4Check that your result has the correct units and is within a reasonable range.
  5. 5Verify using the interactive Trapezoid Area Calculator to confirm your answer.

Related Topics

trapezoidareageometry

Use the Interactive Calculator

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