Trigonometry can be very difficult to get a hang of, and that's why it's so important to practice. This tool automatically generates new random triangle problems so that you can practice all of the different variations. We use a handy table to present several problems at once, and every column is a single triangle. You get some values to start with. Use those values to calculate and fill out the unknowns.
Your answers will be checked automatically and change color.
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The following triangles are all in the form of the basic 90° right triangle where side a is smaller than side b and c is the hypotenuse. The angle A° is opposite side a and smaller than angle B°.
| a | 26.9 | 18.4 | 21.4 | 33.2 | |||||
|---|---|---|---|---|---|---|---|---|---|
| b | 39.2 | 40.1 | 42.7 | 51.6 | |||||
| c | 68.3 | 48.8 | 43.3 | 54.1 | |||||
| A° | 25.7 | 25.0 | 30.8 | ||||||
| B° | 76.3 | 61.8 | 65.9 |
