SOLUTION: If the measure of each interior angle of a regular polygon is 150 degree, then the number of its diagonals will be ?

SOLUTION: If the measure of each interior angle of a regular polygon is 150 degree, then the number of its diagonals will be ?

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Question 1082957: If the measure of each interior angle of a regular polygon is 150 degree, then the number of its diagonals will be ?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

Then the number of sides is n =  = 12

and the number of diagonals is  =  = 54.

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