# Triangle Solving Practice

*Practice solving triangles. *

You only need to know:

Try to solve each triangle yourself first, using pen and paper.

Then use the buttons to solve it step-by-step (more Instructions below).

## Instructions

- Look at the triangle and decide whether you need to find another angle using 180°, or use the sine rule, or use the cosine rule. Click your choice.
- The formula you chose appears, now click on the variable you want to find.
- The calculation is done for you.

- Click again for other rules until you have solved the triangle.

Note: answers are rounded to 1 decimal place.

## What Does "AAS", "ASA" etc Mean?

It means which sides or angles we already know:

AAA | AAS | ASA | SAS | SSA | SSS |

Three Angles | Two Angles and a Side not between |
Two Angles and a Side between | Two Sides and an Angle between | Two Sides and
an Angle not between |
Three Sides |