Similar Figures and Unit Rates

Figures that have the same shape but not necessarily the same size with the ratio of the corresponding sides proportional are called _________.

• similar figures

• scale factors

• unit rates

• congruent angles

Polygons with congruent corresponding angles and proportional corresponding sides are ________________________________.

• congruent

• proportional

• similar polygons

• confusing and cause me to be headachy and nauseous!

The ratio of the length of the model to the corresponding length of the actual object is called ____________________.

• the scale factor

• the proportion

• the conversion factor

• indirect measurement

A ratio that compares quantities measured in different units is a(n) __________________.

• unit rate

• rate

• scale factor

• proportion

The ratio of the length of an image to the corresponding length in the original figure is called _______________________.

• a unit rate

• a scale factor

• a proportion

• cross product

Indirect measurement is ________.

• the use of proportions and similar triangles to measure something that would be difficult to measure directly.

• impossible to do.

• a diabolical plan to ruin my life.

• very hard because triangles have four sides.

Find the unit rate of one diaper if a box of 35 diapers costs $6.99.

• $244.65

• $1.00

• $6.99

• $0.20

Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour

• $1 in 18 hours

• $90:5h

• 5 to 90

It snowed 14 inches in 5 hours. What is the unit rate?

• 3 inches

• 1.5 inches

• 5 inches

• 2.8 inches

Solve the proportion:

• 4

• 8

• 14

• 10