Regular n-gon

In a regular n-angle polygon, the internal angle is 144 degrees. Find the number n indicating the number of sides of this polygon.

Correct answer:

n =  10

Step-by-step explanation:

α=144  α = n(n2) 180° α n = 180°n  360°  n=180α360=180144360=10



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algebraplanimetricsUnits of physical quantitiesGrade of the word problem

 
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