Answer:
The length of a side of the square is given by x
The length of a side of the equilateral triangle is given by x=1
Given is : The perimeter of a square is equal to the perimeter of an equilateral triangle.
Perimeter of square is given as 4 x side.
Perimeter of equilateral triangle is given as 3 x side.
So, we will make both equal.
[tex]4x=3x[/tex]
As x = 1 for triangle, the equation becomes:
[tex]4x=3[/tex]
So, [tex]x=3/4[/tex]