the perimeter of an equilateral triangle is 9cm.how long is each side?
9/3 = 3
To find the length of each side of an equilateral triangle, we need to divide the perimeter of the triangle by the number of sides (which is 3 in this case).
In this problem, the perimeter of the equilateral triangle is given as 9 cm. So, to find the length of each side, we can use the formula:
Side length = Perimeter / Number of sides
Substituting the given values, we have:
Side length = 9 cm / 3 = 3 cm
Therefore, each side of the equilateral triangle is 3 cm long.