• Triangle Calculator 1
  • Triangle Calculator 2
  • Triangle Calculator 3
  • Triangle Calculator 4

Triangle Calculator

By trigonometry, lengths and angles are calculated for a right angled triangle when only two values are known (at least one must be a length). The triangle area is also calculated.
A proportionally correct triangle is drawn after the calculations.
The triangle can be rotated and mirrored.
The number of decimals for lengths, angles and area can be specified.

Category : Tools

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Reviews (7)

Pet. F. Dec 2, 2018     

Brilliant! Love that the triangle changes shape and you can rotate it, perfect for visualising what you are applying the trig to. Only gripe is that you cannot just change values after entering them, you have to re enter all the values, which is a pain when you are using the app in certain circumstances.

Dun. W. Dec 12, 2021     

I can hardly believe how often I use this app! Super simple to use with a clear user interface.

rwh. Nov 12, 2021     

Great app for the work place, and anywere else you need it.

Riy. k. Jun 5, 2021     

Is very useful at work

L.. A. May 10, 2018     

Only complaint so far is after the results I can't go back and change one number. I had ne re enter all the numbers

A. G. u. Jan 20, 2018     

Not only does it work, but it is visually attractive and easy to understand. Excellent work.

moh. y. Mar 23, 2018     

Its use is very easy , and it very Nice aaps for all angle s