Question

The perimeter of a triangular garden is 48 feet. The lengths of two sides are 18 feet and 22 feet. How long is the third side?

Short answer

the third side is 8 feet

Step-by-step solution

step 1. given information

the perimeter of the triangular garden is 48 feet.

the lengths of the two sides are 18 feet and 22 feet

step 2.perimeter of the triangle formula

the perimeter of the triangle is sum of all sides

$p=a+b+c$

step 3.the solution

the third side of the triangular garden is x

$$\begin{gathered} p=a+b+c \\ 48=18+22+x \\ 48=40+x \\ 48-40=x \\ x=8 \end{gathered}$$

the third side of the triangular garden is 8 feet