Distances or lengths of segments can be found using the Distance Formula. 

A calculator, paper, and pencil are needed.

Use the figures in the following problems and the Distance Formula to find the distances asked for below.

Find the perimeter of triangle ABC.

Triangle with vertices A(-3,2), B(3,2), C(0,-5)

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Hint

You may only need to use the distance formula once for this problem.
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Check Answer

P = 6 + √58 + √58 = 21.2 Close Pop Up

In the circle below, find the length of the radius, the diameter, and the circumference.

Radius __________
Diameter __________
Circumference__________

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Hint

C = 2πr Close Pop Up
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Check Answer

Radius square root of 13 equals approximately 3.6
Diameter equals approximately 7.2
Circumference equals approximately 22.6
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Circle center (-2,-1), y-intercepts (0,-4), (0,2)

Find the perimeter of polygon ABCDE.

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Hint

Make an organization tool, like a table to keep track of each segment length you need to find.
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Check Answer

26.8
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Polygon vertices: (-1,4), (-5,1), (-4,-3), (2,-4), (4,-2)