Final answer:
The length of the side of an equilateral triangle whose perimeter is 150 cm is 50 cm. This is calculated by dividing the total perimeter of the equilateral triangle by 3, since all sides of an equilateral triangle are equal.
Step-by-step explanation:
To find the length of the side of an equilateral triangle, you need to understand that all the sides of an equilateral triangle are equal. Therefore, to find the side length, you simply divide the total perimeter by 3.
For instance, if the perimeter of the triangle is said to be 150 cm, the length of one side would be 150 cm divided by 3, which equals 50 cm. Therefore, the length of the side of the equilateral triangle is 50 cm.
This is a basic concept of geometry that applies to all equilateral triangles, regardless of their size.
Learn more about Triangle Perimeter