Ellipse area
Ellipse area: use semimajor radius, semiminor radius. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
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Formula & explanation
A = πab
Variables & units
- Semimajor radius
- m · minimum 0, maximum 1000000000000
- Semiminor radius
- m · minimum 0, maximum 1000000000000
Worked example
Semiaxes 5 m and 3 m give 15π m².
Assumptions
Use semiaxes, which are half the full width and height.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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