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where n = number of sides total sum of interior angles: (n - 2) * 180 so (12-2)*180 then divide that number by n 10*180 / 12
1 foot = 12 inches. Therefore, to convert from inches to feet, you divide by 12.
To get your answer, divide 15 by 180. 180/15 = 12. Now, let's check your work! 15 x 12 = 180. Yay, it's correct!
LCM(12, 180) = 180
You divide by 12.You divide by 12.You divide by 12.You divide by 12.