Question

Which equation can be used to find the answer? A playground with four sides has a perimeter of 73 ft. Three of the sides have lengths of 14 ft, 19 ft, and 25 ft. What is the length of the fourth side?

s – 14 + 19 + 25 = 73

s – 73 = 14 + 19 – 25

s + 14 + 19 + 25 = 73

s – 14 – 19 – 25 = 73

Answer 1

Considering that perimeter in the sum of all sides, we have:

`Perimeter=side1+side2+side3+side4`

Once the perimeter is 73 ft and tree of the sides were given:

The correct equation is:

`s + 14 + 19 + 25 = 73`

Also,

`s + 14 + 19 + 25 = 73\\s=73-58\\s=15`