Question

the length of each side of an in Quadro triangle is increased by 5 in the perimeter is now 60 in write and solve an equation to determine the original length of each side of the equilateral triangle

Answer 1

15 inches

Explanation:

The perimeter is 3 times the side length. If the original side length is represented by s, we are told by the problem statement that ...

... 3(s +5 in) = 60 in . . . . an equation for the increased perimeter

... s +5 in = 20 in . . . . . . divide by 3

... s = 15 in . . . . . . . . . . . subtract 5 in

The original side length is 15 in.