Key learning points

1. By knowing two side lengths and the angle between them in the triangle and image, you can prove congruence.
2. The angle between the sides must be the same in both object and image.
3. The given sides must have the same multiplicative relationship.

Keywords

• Congruent - If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are congruent.

Common misconception