SOLUTION: I am having trouble with the algebra of this problem. If every angle of a regular polygon is 144 degrees how many sides does the polygon have. Using the formula 144 = 180(n-2)

Algebra ->  Polygons -> SOLUTION: I am having trouble with the algebra of this problem. If every angle of a regular polygon is 144 degrees how many sides does the polygon have. Using the formula 144 = 180(n-2)       Log On


   

Question 421893: I am having trouble with the algebra of this problem. If every angle of a regular polygon is 144 degrees how many sides does the polygon have. Using the formula
144 = 180(n-2)
________
n
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply both sides by n to obtain

144n+=+180%28n-2%29

144n+=+180n+-+360

Subtract both sides by 180n

-36n+=+-360

n = 10, so 10 sides.