A triangle has sides w/ lengths of 3x, 5x, and 8x. All of the sides add up to 180. Express the perimeter of the triangle in terms of x. PLEASE HELP!!!!!
3x + 5x + 8x = 180
16x = 180
x = ?
To express the perimeter of the triangle in terms of x, you need to add up the lengths of all three sides: 3x + 5x + 8x.
Combining like terms, you get 16x. This means that the perimeter of the triangle is 16x.