Similar Triangles Review

Front

If two figures are similar their angles are______.

Back

congruent

Front

What similarity theorem would you use to prove these triangles are similar?

Back

AA∼

Front

Are the triangles similar?

Back

Yes

Front

Determine if the triangles are similar. Justify.

Back

Yes, by SAS. Scale Factor is 3:1.

Front

Solve for f: 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

1:2

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but not necessarily the same size; their corresponding angles are equal and their corresponding sides are proportional.

Front

What does the AA similarity criterion state?

Back

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

Front

What is the SSS similarity criterion?

Back

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

Front

What is the SAS similarity criterion?

Back

If two sides of one triangle are in proportion to two sides of another triangle and the included angles are equal, then the triangles are similar.

Front

If triangle XYZ is similar to triangle PQR, and the lengths of XY and PQ are 5 and 10 respectively, what is the ratio of their areas?

Back

1:4