The perimeter of an isosceles triangle is 21 meters. The length of one side is 3 meters longer than the length of the other two sides. Find the length of each side

The length of the sides are 9 meters, 6 meters , 6 meters

Step-by-step explanation:

An isosceles triangle is a triangle which has its base angles angle. What this means is that the length of two sides are equal leaving a third side with an unequal length.

From the question, we are told that the length of one side is 3 meters longer than the length of the other two sides. What this means is that if we the unequal length by x, the length of the other two sides would be (x-3), (x-3)

Mathematically, the perimeter of a triangle can be calculated by adding the length of the sides together.

This means that; x + x-3 + x -3 = 21

3x -6 = 21

3x = 21 + 6

3x = 27

x = 27/3

x = 9 meters

The length of the other sides is x -3 which is 9-3 = 6 meters