Question

The measure of the sides of a triangle are in a ratio of 3: 4: 5. If the perimeter of the rectangle is 72 inches, find the length of the shortest side

Answer 1

The ratio indicates that the sides are proportional to one another. o remain proportional, each ratio must be multiplied by the same number until their sum equals the perimeter; so:

3x + 4x + 5x = 72

Now we simplify and solve, as follows:

12x = 72

x = 6

Then, the length of the shortest side is:

3 x 6 = 18 in