Published by Kevin Böhmer

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About Triangle Calculator

1. Do you want to calculate the sides and angles of a triangle, but you don't know how?

2. Triangle Calculator uses Sine, Cosine and Tangent.

3. The app calculates all sides and angles of a triangle.

4. Only thing you need to do is to fill two sides or one side and one angle.

5. Then Triangle Calculator is the perfect app for you.

6. This is possible through an easily understandable layout where you have to press only on the buttons.

7. Or you don't want to calculate it?

8. You don't have knowledge, because that has the app.

9. The results will be displayed elegantly.

Triangle Calculator Customer Insights

1. Find your degrees anyway and center point axis, then subtract the lesser degree angle's degree value from the major one and you have your right angle and it will give you the other values you may require accurately.I must apologize to the developer, as I initially avoided this app in favor of the more flashy, colorful apps.

2. 5 starsGreat and accurate so far! One question though: When inputting degrees should I use a base 10 decimal for partial degrees or enter angles into the data as the actual minutes after the decimal point? For the folks who complain that it only works with one known right (90 degree) angle.

3. Can quickly find angles or leg lengths with this without having to find a pencil and paper.It only does right angle triangles.

4. So I've been checking out a lot of trig solver type apps, for what I do this one is on point! That said I still have my trusty scientific calculator on hand if I'm in a pickle, failing that I also have a very comprehensive librarySimply perfect.

5. I enter an angle and hypotenuse, it calculates the opposite and adjacent sides.Simple perfection.

6. If all you need is a quick way of breaking down lengths and angles without trying to remember which one the cosine is, THIS IS THE APP!Makes life a lot easier on the job.

7. This app calculates the lengths and angles of a right triangle exactly as you would expect a triangle calculation app should.

8. Nice user interface, but as soon as your triangle doesn't have a right angle - useless.

9. Only does triangles with one 90° angle, witch is not terribly useful.

10. After years of using "trig solver" on iOS (equally as good), I couldn't find it in Google play.

11. Plug in your own measurements, angles or variables and with as little as 2 dimensions it calculates the rest.

Steps to Troubleshoot & Fix Triangle Calculator Issues

1. Fix Triangle Calculator Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Triangle Calculator: Restarting the app will resolve most errors.
  2. Update the Triangle Calculator App. Here is how:
    1. On Android goto PlayStore » Search for "Triangle Calculator" » Open Triangle Calculator » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Triangle Calculator » click "UPDATE".
  3. Clear Triangle Calculator app cache: Clearing cached data will force your app to retrieve the latest data directly from Triangle Calculator servers.
    1. On Android, goto Settings » Apps » Select "Triangle Calculator" » click Storage » click "Clear Cache".
  4. Check Triangle Calculator app permissions. If any of these permissions required to use your device's features are disenabled, Triangle Calculator might not work.
  5. Uninstall and reinstall Triangle Calculator. If nothing else has worked, completely uninstall Triangle Calculator then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Triangle Calculator not working


2. Fix Triangle Calculator Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Triangle Calculator be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Triangle Calculator not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Triangle Calculator may not be able to connect to the Internet when running in the background.

Reported Issues