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Greeley [361]
2 years ago
5

Help

Mathematics
1 answer:
weeeeeb [17]2 years ago
3 0

Answer:

If a polygon is convex, then the sum of the measures of the exterior angles, one at each vertex, is 360° .

Consider the sum of the measures of the exterior angles for an n -gon.

N=180n−180(n−2)

Distribute 180 .

N=180n−180n+360 =360.

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
Which of the following can be the side lengths of a triangle?
kogti [31]
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</span><span>A:12,9,21
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