Geometry Unit 4 Practice Test

Front

A dilation produces a congruent figure.

Back

False

Front

Similar figures have the same ______ but different ______.

Back

shape; sizes

Front

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

Back

B' (8 ,18)

Front

State the postulate that proves the triangles are similar.

Back

SSS

Front

Find side length X if the corresponding sides of similar triangles are in the ratio 3:4 and one side is 12.

Back

16

Front

What is the definition of dilation in geometry?

Back

A transformation that produces a figure similar to the original by increasing or decreasing its size.

Front

What does it mean for two triangles to be similar?

Back

They have the same shape but not necessarily the same size.

Front

What is the AA criterion for triangle similarity?

Back

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

Front

What is the SSS criterion for triangle similarity?

Back

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

Front

What is the SAS criterion for triangle similarity?

Back

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