7.2-7.3 ELABORATE Proportions and Similar Triangles

Front

If two figures are similar, their angles are ______.

Back

congruent

Front

What is the similarity criterion that states if two triangles have two pairs of corresponding angles equal, they are similar?

Back

AA~ (Angle-Angle Similarity)

Front

What does it mean for polygons to be similar?

Back

Similar polygons have the same shape but different sizes.

Front

Back

Front

What is the similarity statement for triangles ΔMNL and ΔPQO?

Back

ΔLMN ∼ ΔPQO

Front

What is the criterion for triangle similarity that involves two sides and the included angle?

Back

SAS~ (Side-Angle-Side Similarity)

Front

What is the criterion for triangle similarity that involves three pairs of corresponding sides being proportional?

Back

SSS~ (Side-Side-Side Similarity)

Front

In similar triangles, the ratio of the lengths of corresponding sides is called what?

Back

The scale factor.

Front

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

Back

Their corresponding sides are proportional.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles are congruent.