SOLUTION: the sum of a polygon with (2n-3)sides is 62 right angles. find the value of n.

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Question 466777: the sum of a polygon with (2n-3)sides is 62 right angles. find the value of n.
Answer by ccs2011(207) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for relating number of sides to sum of interior angles is:
180%28N-2%29=+sum
Where N is number of sides
Given is sum = 62 right angles and N = 2n-3
sum of 62 right angles = 62*90
Here is our equation:
180%28%282n-3%29+-+2%29+=+62%2A90
180%282n+-+5%29+=+62%2A90
Divide by 180 on both sides
2n+-+5+=+31
Add 5 on both sides
2n+=+36
Divide by 2 on both sides
n+=+18