Unit 6 Test (Similarity)

Front

What is the AA Similarity Postulate?

Back

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

Front

What is the SSS Similarity Theorem?

Back

If the corresponding sides of two triangles are in proportion, then the triangles are similar.

Front

What is the SAS Similarity Theorem?

Back

If two sides of one triangle are proportional to two sides of another triangle and the included angles are congruent, then the triangles are similar.

Front

How do you determine if two triangles are similar?

Back

You can use AA, SSS, or SAS similarity criteria to determine if two triangles are similar.

Front

What is a scale factor in similarity?

Back

The scale factor is the ratio of the lengths of corresponding sides of two similar figures.

Front

If triangle ABC is similar to triangle DEF, and the lengths of AB and DE are 4 and 8 respectively, what is the scale factor?

Back

The scale factor is 2.

Front

Back

p = 52.

Front

If triangle XYZ is similar to triangle PQR, and the length of XY is 6 and PQ is 3, what is the scale factor?

Back

The scale factor is 2.

Front

What does it mean for triangles to be similar?

Back

Similar triangles have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are in proportion.

Front

If two triangles have angles measuring 30°, 60°, and 90°, are they similar?

Back

Yes, they are similar by AA similarity.