Question

Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?

Answer 1

If you plug in 4 to each x then add all values together you will have the perimeter.

3(4)-4= 8

4^2 -1=15

2(4)^2-15=17

8+15+17= 40

The perimeter of the triangle is 40 feet