<PRE><B>Question 244486</B>
1. 
How many angles would a regular polygon have if each exterior angle measures 5°?
Each interior angle is 175 degs.
n = 360/(180 - 175)
n = 72 sides and angles
------------------------
2. 
Calculate the measure for each interior angle of a regular 15-gon.
Angles = 180*(15-2)/15
= 156 degs
-------------
3. 
Calculate the measure for each exterior angle of a regular nonagon
Interior angle = 180*(9-2)/9 = 140 degs
Exterior = 40 degs
</PRE>