Question

A triangle has sides with lenghts of 5×-7, 3×-4 and 2x-6. What is the simplified expression for the perimeter of the triangle

Answer 1

Answer:

Perimeter = side1 + side2 + side3

Perimeter = 5x-7+3x-4+2x-6

Perimeter = (5x + 3x + 2x) +(-7 + -4 + -6)

                 =10x - 17

Step-by-step explanation:

Answer 2

Answer: Perimeter of ∆ is = 0

Step-by-step explanation:

Sides of ∆ is 1. (5x-7)

2. (3x-4)

3. (2x-6)

Perimeter of ∆ = sum of all sides

P.∆ = 5x-7+3x-4+2x-6 = 10x-17

=>. 10x = 17

=>. x = 17/10 = 1.7

The value of x = 1.7 put in 10x-17

P.∆ = 10x-17 = 10×1.7-17 = 17-17 = 0