7.1 Ratios and Proportions

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Presentation transcript:

7.1 Ratios and Proportions By Brit Caswell

When we encounter similar objects in Geometry, we are often able to set up ratios or proportions in order to determine missing pieces of information.

Pg 432, #1

Pg 433, #2

The measure of two supplementary angles is 5:7. What are their measures?

Pg 433, #3

An equation that states that two ratios are equal is called a proportion. The first and last numbers in the proportion are the extremes. The middle two numbers are the means.

Pg 434, #4

Pg 435, #5

Think, Pair, Share