SOLUTION: how to find n in the fomula 180(n-2)/n when the measure of one interior angle is 140.

Question 277284: how to find n in the fomula 180(n-2)/n when the measure of one interior angle is 140.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First set the given formula equal to the given interior angle measurement.

Multiply both sides by 'n'

Distribute.

Add to both sides.

Subtract from both sides.

Combine like terms on the left side.

Divide both sides by to isolate .

Reduce.

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Answer:

So the solution is
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