Answer
The perimeter is the complete sum of all the sides of a shape. In this case, it is a triangle. We will add all the sides of the triangle to find the perimeter.
$x+(2x-5)+(5x-20)$
$x+2x-5+5x-20$
$8x-25$
Work Step by Step
1.First, add all the sides of the triangle together
$x+(2x-5)+(5x-20)$
2.Next, simplify
$x+2x-5+5x-20$
3.Your final answer is $8x-25$
$8x-25$
