What is the perimeter of an equilateral triangle if this perimeter is 4 times the perimeter of a square with a side of 4 cm 5 mm?

Let’s write down the condition of the problem:
P of a triangle is 4 times the P of a square
a (side of the square) – 4 cm 5 mm
Decision
1. Calculate the perimeter of the square
P = 4 * a = 4 * 4.5 = 18 centimeters
2. Determine the perimeter of the triangle
P = 4 * 18 = 72 centimeters
Answer: The perimeter of an equilateral triangle is 72 centimeters.