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Trapezoid Area — result sheet
Area of a trapezoid from its two parallel sides and height.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: A = (a + b) / 2 * h.
Average the two parallel sides, then multiply by the perpendicular distance between them. All sides must be positive and share one length unit.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Parallel side a — units; minimum 1.0E-6; maximum 1000000000
- Parallel side b — units; minimum 1.0E-6; maximum 1000000000
- Height (distance between sides) — units; minimum 1.0E-6; maximum 1000000000
Worked example
| Input | Value |
|---|---|
| Parallel side a | 3 |
| Parallel side b | 5 |
| Height (distance between sides) | 4 |
16 square units
Assumptions and limits
- a and b are the parallel pair; h is perpendicular to both.
- All inputs positive in the same unit.
- Euclidean plane geometry.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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