Chapter 5: Ratio, Proportion, and Similar Figures

What is the measure of x?

• 12

• 15

• 6

• 9

Find the value of x.

• 17.5

• 10

• 7

• 17

Solve for x.

• 8

• 6

• 5

• -8

A method of measurement that uses formulas, similar figures, and/or proportions is called ______________.

• Dialation

• Proportion

• Indirect Measurement

• Geometric Measurement

The ratio of two corresponding linear measurements in a pair of similar figures is the _____.

• similarity ratio

• proportion

• scale factor

• means of a proportion

A transformation that changes the size but not the shape of a figure is a _____.

• dialation

• reflection

• rotation

• similarity ratio

Use the table to express the ratio in simplest form: Ash to Maple

• 2/3

• 3/2

• 18/12

• 12/18

Similarity Ratio: _

• 2/3

• 1/2

• 2

• 3

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

Determine if the triangles are similar. Justify.

• Yes, SAS.

• Yes, AA.

• Yes, SSS.

• No, not similar.