Chapter 7 Flashcards
(12 cards)
Compares three or more numbers
Extended ratio
An equation that states that two ratios are equal
Proportion
The first and last numbers in a proportion
Extremes
The middle two numbers
Means
Have the same shape but not necessarily the same size
Similar figures
When three or more ratios equal you can write an ______
Extended proportion
The ratio of corresponding lines measurements of two similar figures
scale factor
All lengths are proportional to their corresponding actual lengths
Scale drawing
The ratio that compares each length in the scale drawing to the actual length
Scale
Used to find lengths that are difficult to measure directly
Indirect measure
Positive number
Geometric mean
A comparison of two quantities by division
Ratio