360X^-1
then go to your table of values and you will be able to see all the angle measures for every side
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180° (n - 2), where n is the number of sides.
An acute angle.
get a protractor, then multiply your decimal by 360 degrees. Then take that number and find it with the protractor.
The method of finding the sum of the interior angles of a polygon is by multiplying the (number of sides)-2 by 180, so the sum of the interior angle measures in a 25-sided polygon would be 23*180, or 4140 degrees.
A right angle measures 90 degrees