About Triangle Calculator
The application calculates the lengths, angles, area and perimeter of a right-angle triangle when only 2 values are known. A proportionally correct triangle is drawn according to calculations. The proportions of the...
The application calculates the lengths, angles, area and perimeter of a right-angle triangle when only 2 values are known. A proportionally correct triangle is drawn according to calculations. The proportions of the triangle are consciously incorrect if any angle is too small. If the proportions are not OK a message alerts you to this. The shown triangle can be rotated and flipped. The number of decimals for lengths, angles, area and perimeter (according to lengths) can be specified. Note that the results may be rounded if they are to be used! It is possible to reuse and edit the most recently entered values after clearing. It is possible to change the color theme on backgrounds. Note that the results are given with a maximum of ~15 significant digits (all calculations are made in 64-bit double precision).
Previous Versions
Here you can find the changelog of Triangle Calculator since it was posted on our website on 2023-09-06 19:11:19.
The latest version is and it was updated on 2026-06-20 20:45:59. See below the changes in each version.
Triangle Calculator version -
Updated At: 2026-06-20
Disclaimer
Official App Store Link
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