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arsen [322]
3 years ago
7

A regular decagon has 10 sides

Mathematics
2 answers:
AfilCa [17]3 years ago
8 0

Answer: 10

Step-by-step explanation:

alexgriva [62]3 years ago
5 0
10! You’re welcome :)
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Step-by-step explanation:

Suppose that the side length is s.  Imagine that one side is level.  Draw a vertical line through the top vertex perpendicular to the base (level side).  Label this vertical line "h."  Then h and s are related as follows:

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sin 60 degrees = ------- = --------

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The area of this triangle is (1/2)(base)(height), which here is:

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               8                                

8 0
3 years ago
Read 2 more answers
What is solve 5x-65=3x-17
NikAS [45]
If you would like to solve 5x - 65 = 3x - 17, you can do this using the following steps:

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3 years ago
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