Question

What is the perimeter of a triangle with the side lengths 4 cm, 6 cm, and (3y-2) cm?

Answer 1

Explanation:

P = 4 + 6 + (3y - 2) Remove the brackets

P = 10 + 3y - 2 Combine

P = 8 + 3y

Note 3y must be less than 8. That's because 2 sides of any triangle must be larger than the 3rd side or else you don't have a triangle.