The length of each side of the triangle is 9 cm; the length of the rectangle is 6 cm

The length of each side of the triangle is 9 cm; the length of the rectangle is 6 cm; the width is 2 cm, how much is the perimeter of the triangle greater than the perimeter of the rectangle?

Let’s calculate how many centimeters the perimeter of the triangle will equal if we know, according to the conditions from this problem, that each side of it is equal to 9 centimeters:

3 * 9 = 27.

Let’s calculate how many centimeters the perimeter of the rectangle will equal if it is known that it is calculated as the doubled sum of its measurements:

(6 + 2) * 2 = 16.

Let’s calculate how many centimeters the perimeter of the first figure is larger than the perimeter of the second:

27 – 16 = 11.

Answer: The perimeter of the first figure is 11 centimeters larger.