Unit 4 Test Review

Front

What are the coordinates of Q' when triangle PQR is dilated by a scale factor of 4 using the origin as center?

Back

Q' (16,20)

Front

State the postulate that proves these triangles are similar.

Back

SSS~

Front

Find the missing length: If one side is 2 and the corresponding side in a similar triangle is 10, what is the missing length if the corresponding side is 4?

Back

10

Front

Determine the relationship between the triangles: Triangle ABC and Triangle DEF are not similar. What does this imply?

Back

Not similar

Front

The Angle-Angle Similarity (AA ~) Theorem states if two angles of one triangle are _______________ to two angles of another triangle, then the triangles are ____________________.

Back

congruent; similar

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may have different sizes.

Front

What does the SSS similarity postulate state?

Back

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

Front

What does the SAS similarity postulate state?

Back

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

Front

What is the AA similarity postulate?

Back

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

Front

If triangle XYZ is similar to triangle ABC, and the lengths of sides XY and AB are 3 and 6 respectively, what is the scale factor?

Back

1/2