Check the similarity of triangles

This wizard is used to determine whether two triangles are similar. You can use one of the four common criteria:

1. Angle - Angle similarity
2. Hypotenuse - Leg similarity
3. Side - Angle - Side similarity
4. Side - Side - Side similarity

It can be accessed by clicking on Wizard Button | Geometry and Trigonometry | Check the similarity of triangles.

To check the similarity:

• First select the rule, and then enter the corresponding data.

• Press "Solve step" or "Solve all" button to see the solution process.

Make certain that you enter exactly the right amount of data, and also that you enter only the corresponding data values. For example, when using the Hypotenuse – leg similarity rule:

you can enter values for:

AB, BC and DE, EF

or

AC, BC and DE, EF

but you can not enter values for:

AB, BC, CA and DE, EF and FD  (too much data) or

AB, BC and DF, EF (sides AB and DF are not the corresponding sides) or

AB, AC and DE, DF (the hypotenuse was excluded)