15<span>√2 is what I got for the answer.</span>
Step-by-step explanation:
Given

Hope it will help :)
The sum of the measures of all exterior angle in a polygon with n sides is always
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Nonagon is a polygon with 9 sides. If this nonagon is regular or equiangular, then all interior angle are congruent, and therefore all exterior angles are congruent. Then the measure of each exterior angle is
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Answer:
Add the picture please :) i will go on your page and answer when you add the image. Remember to always double check if you have the image clipped on whenever you ask something that needs an image, thank you.
The Answer of <span>−2cos2π91 =</span> is -2