Trigonometry Calculator - Right Triangles
Enter all known variables (sides a, b and c; angles A and B) into the text boxes. To enter a value, click inside one of the text boxes. Click on the "Calculate" button to solve for all unknown variables.
How do you find a 30 60 90 triangle?
In 30 60 90 triangle the ratios are: 1 : 2 : 3 for angles (30° : 60° : 90°) 1 : √3 : 2 for sides (a : a√3 : 2a)
How do you find 3 missing sides of a triangle?
Different Ways to Find the Third Side of a Triangle
For a right triangle, use the Pythagorean Theorem. For an isosceles triangle, use the area formula for an isosceles. If you know some of the angles and other side lengths, use the law of cosines or the law of sines.