Definition: congruent means that objects have the same shape. It does not mean that they are 'equal', exactly.

People often confuse this word with 'equal,' but there is a small difference in the way that these two words should be used.

Equal should be used to relate the lengths or measurements of two sides, angles or parts of shapes.

**Examples of 'congruent'**

Side AB is congruent to BC

$$ \angle A $$ is congruent $$ \to \angle B $$

**Examples of 'equal'**

The length of side AB is equal to the length of side BC

the measure of $$ \angle A $$ equals the measure of $$ \angle B $$