Chapter 4 Vocabulary

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

• unit rate

• rate

• scale factor

• proportion

The rate for one unit of a given quantity is a(n) ________________________.

• unit rate

• ratio

• scale

• congruent

A rate equal to 1 that is used to change one unit of measure to another is a(n) _____________.

• conversion factor

• scale factor

• cross product

• proportion

An equation stating that two rates are equal is a(n) ____________________.

• proportion

• reduction

• enlargement

• conversion factor

Two products found by multiplying the denominator of each ratio by the numerator of the other are ____________________________.

• cross products

• reciprocals

• congruent angles

• reductions

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

Congruent figures are figures that ________________________________.

(Choose the BEST answer!)

• have the same shape

• have the same measurements

• have both the same shape and same measurements

• are proportional

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

(Choose the BEST answer!)

• congruent

• proportional

• similar polygons

• confusing and cause me to be headachy and nauseous!

A transformation of an image that produces a similar image, but not necessarily the same size image is called a(n) _________________________________.

(Choose the BEST answer!)

• dilation

• enlargement

• reduction

• scale factor

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