Math Dictionary / Congruent Figures
Congruent Figures
Congruent figures have the same shape and the same size.
GeometryGrade 7Grade 8SATACT
What it means
They can be moved, flipped, or turned and still match exactly.
Also called: same shape and size
Examples
| Two segments with the same length are congruent |
| Two angles with the same measure are congruent |
| Two triangles can be congruent after a rotation |
Common mistake
Figures can be congruent even if one is rotated or reflected.
Try one
Question: Are two squares with side length 5 congruent?
Show answer
Yes. They have the same shape and size.