the length of each side of an equilateral triangle is decreased by 4in so the perimeter is now 27 inches. what is the original length of each side of the equilateral triangle
13 inches so the perimeter would be 39. How I got the answer: I divided 27 by three. The answer was nine, so I added 4 to where I got 13. 13 is the side length. 13 times 3 (cuz there is three sides) is 39. Hope I helped!!