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Geo 7.1 Ratios and Proportions
Contributed by: DiLaura
(Original author: Karsten)
Check all the equivalent forms
of expressing the ratio ⅓.
1 to 3
1 : 3
1, 3
3 : 1
1 : 2 : 3
Fill in the blank: 
A ____________________ is an equation
stating two ratios are equal.
portion
ration
proportion
propeltion
The ratio of the angle measures in a triangle is
1:2:3.  What is the measure of the largest angle?

largest angle =
2x
3x
degrees
1x
Solve the following proportion for x.


x = 
120            x
40             2 
=
Solve the following proportion for x.


x = 
2x - 1           x + 1
6                 2
=
Solve the following proportion for x.


x = 
4               x
x             16 
=
The angle measures of a quadrilateral are in 
a ratio of 2:3:4:6. Find the measure of the largest
angle. 
largest angle = 
The ratio of the lengths of a triangle are 4:6:9 and
its perimeter is 57cm.  Find the length of the
shortest side.
short side =
Write a ratio expressing the slope of line m.

slope =
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