Front

What are similar triangles?

Back

Triangles that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is the Angle-Angle (AA) similarity criterion?

Back

If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.

Front

What does it mean for angles to be congruent?

Back

Angles that have the same measure.

Front

If two triangles are similar, what can be said about their corresponding angles?

Back

Their corresponding angles are congruent.

Front

If triangle A is similar to triangle B, what can be said about their sides?

Back

The lengths of their corresponding sides are proportional.

Front

What is the relationship between similar triangles and scale factors?

Back

The ratio of the lengths of corresponding sides of similar triangles is called the scale factor.

Front

Can two triangles be similar if only one pair of angles is equal?

Back

No, at least two pairs of angles must be equal for the triangles to be similar.

Front

What is the definition of proportional sides in similar triangles?

Back

The sides of similar triangles are in the same ratio, meaning the ratio of one side of a triangle to the corresponding side of another triangle is constant.

Front

What is the significance of the Side-Angle-Side (SAS) similarity criterion?

Back

If one angle of a triangle is equal to one angle of another triangle and the sides including those angles are in proportion, then the triangles are similar.

Front

What does it mean for triangles to be non-similar?

Back

Triangles that do not have the same shape, meaning their corresponding angles are not equal or their sides are not in proportion.