Right Triangle Tutor


Right Triangle Tutor is...

First and foremost a learning tool. Right Triangle Tutor, or RTT, can generate random triangles and sides like no other program. Think of them like snowflakes, each one is similar but different.

For every triangle RTT makes, it bangs out a suitable problem or question about that triangle.

No matter what your trigonometry skill level is, RTT has you covered.

You tell RTT if you want to work in Radians or Degrees, what skill level or type of question to ask, and how many triangles you want to solve. This kind of customization allows you to ease yourself into trigonometry like never before.



RTT's calculator and hints make even complicated problems easy to follow.

Lets walk through a typical problem.

This is an advanced problem where you want to solve for the hypotenuse of this Triangle indicated by the question marks.



Let us pretend you don't know how to solve this particular problem. Pressing the Hint button at the bottom of the screen slides up the hint paper. This will have a diagram about the current triangle, and some algebra on how to solve for the ??.

Note that the hint may not look exactly like the triangle above it. You are required to gleam which side and angle is which.


Pressing the bottom calculator button slides up the built in calculator. This calculator solves equations using the standard order of operations so that you can skip a lot of intermediate steps.

Here are some valid inputs:




Ok, so that last one is unlikely to come up, but it would still calculate fine. If something goes wrong in the calculation, such as you don't have all the ( balanced with ) symbols, or you try to calculate asin of a number larger than 1, the calculator will give an error so you can check your calculation.


Presuming you did the calculation correctly, you can now press the Calculator button again to hide the built in calculator. The calculation itself stays on the problem so you can choose your answer.

Note that sometimes you have to round a little bit. Sometimes your answer will be exactly correct.


What people are saying about RTT:

"This app is great practice for school. Best idea for an app!"

-Yuki Norton

"Great supplement to a trigonometry class. Really helps you practice the concepts."

-Kaylie S.