Geometry Similarity Test

Calculate the area. Use 3.14 for pi. Round the nearest tenth if needed.

• 57.1 m ²

• 32 m ²

• 58 m ²

• 57.12 m ²

The homeowners association wants to enclose a circular playground in a fence. The need to find the amount of fencing they need to purchase.  Will they need the area or circumference of the playground?

• area

• circumference

• neither

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Determine whether the triangles are similar(name the postulate or theorem you used).

• SSS similar

• AA similar

• SAS similar

Find AE

• 12.5

• 18

• 11.75

• 13

Are these triangles similar?

• No

• Yes by SSS∼

• Yes by AA∼

• Yes by SAS∼

Determine which postulate proves the triangles similar.

• AA~

• SSS

• SAS

• AAA

Which statement best shows similarity between the two triangles?

Quad OBCD is similar to Quad OHTE because:

• Quad OBCD can be reflected over the x axis and then rotated 90 degrees

• Quad OBCD can be reflected over the x-axis and then dilated about point O by a scale factor of 2.

• Quad OBCD can be reflected over the y-axis and then dilated about point O by a scale factor of 2.

• Quad OBCD can be reflected over the y-axis and then dilated about point O by a scale factor of 1/2.

A dilation produces a similar figure.

• True

• False