Question

if the sides of a triangle are 3x, x-4, and x+2, what is the perimeter of the triangle in terms of x?

Answer 1

Explanation:

The perimeter is just the sum of all side lengths so

P=3x+(x-4)+(x+2)

P=3x+x-4+x+2

P=5x-2

Answer 2

P = 5x - 2

Explanation:

Givens

P=s1 + s2 + s3

• s1 = 3x
• s2 = x - 4
• s3 = x + 2

Solution

• P = 3x + x - 4 + x + 2
• P = 5x - 2