Chapter 5 Ratio Proportion and Similar Figures

Are the two triangles Similar?  

• Yes, by the SSS postulate

• Yes, by the SAS postulate

• Yes, by the AA postulate

• No, they are NOT similar 

The length of the sides of two similar triangles are in the ratio of 2:3. If the area of the larger triangle is 45 cm², find the area of the smallest triangle.

• 30 cm²

• 15 cm²

• 10 cm²

• 20 cm²

Find AE

• 12.5

• 18

• 11.75

• 13

Choose the correct scale factor if NDMP is the original and N'D'M'P'

• 2

• 3

• 1/3

• 1/2

Solve for x.

• 8

• 6

• 5

• -8

A statement that two ratios are equal is a _______.

• proportion

• ratio

• similar polygon

• means of a proportion

Two figures that have the same shape but not necessarily the same size are _____.

• dilation

• scale drawing

• scale factor

• similar

The multiplier used on each dimension to change one figure into a similar figure is the _____.

• similarity ratio

• scale factor

• proportion

• means of a proportion

In a proportion a:b = c:d, these are the first and last positions.

• extremes of a proportion

• means of a proportion

• scale factor

• similarity ratio

A comparison of two quantities by division is a _____.

• scale factor

• extremes of a proportion

• proportion

• ratio