Similarity Review: 7.1-7.3

Classify the dilation and report the scale factor (k).

From Rectangle ABCD --> Rectangle EFGH

• Reduction, k=1/3

• Enlargement, k=1/3

• Reduction, k=3

• Enlargement, k=3

Classify the dilation and report the scale factor (k).

From Triangle STU --> Triangle VWX

• Reduction, k=1/2

• Enlargement, k=1/2

• Reduction, k=2

• Enlargement, k=2

What would Q' be under the dilation of 1/2?

EX (x,y) no spaces and a COMMA between x and y!

Use the key between 0 and = if you need the negative sign

All circles are ...

• Congruent

• Proportional

• Similar

• Best Friends

Which transformation would be preformed first in the similarity transformation below?

A Translation <4,-1> then a Dilation of 2

• D2

• T<4,-1>

Which transformation would be preformed last in the similarity transformation below?

A Dilation of 1/2 then a Reflection <x-axis>

• D1/2

• R<x-axis>

• r<x-axis>

Under a similarity transformation side lengths are...

• Congruent

• Preposterous

• Proportional

Under a similarity transformation angle measures are...

• Congruent

• Congested

• Proportional

Which of the following is NOT a theorem we use to prove triangles similar?

• AA~

• SSS~

• AAS~

• SAS~

State if the triangles are similar. If so, state the similarity criterion.

• AA~

• SAS~

• Not ~

• SSS~