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Please help me out????? :)

Please help me out????? :)-example-1
User Nurqm
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Answer: 144°

Explanation:

The sum of the interior angles of a polygon is: I = 180(n - 2) where n is the number of sides.

To find the measure of one angle, divide the sum by the number of sides.


I_(\ angle) = (180(n-2))/(n)\quad

Note: A decagon has 10 sides so n = 10


I_(\ angle)=(180(10-2))/(10)\\\\\\.\qquad =(180(8))/(10)\\\\\\.\qquad =18(8)\\\\\\.\qquad =144

User Meirav
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