The lengths of the sides of a triangle are represented by 3m, 3m and 3m.

Q1. What is an expression, in simplest form, for the perimeter of the triangle? A: Believe 3 (3m) or 9m?

Q2. Use the distributive property to write an equivalent expression for the perimeter of the triangle.

A: 3 (2m+m) ?

Q1: The perimeter of the triangle is a + b + c and if each side is the same then it's 3a. In this situation we may write it in its simplest form as 9m. Note that 3 (3m) is also correct but it's not the simplest form.

Q2: You're correct, the distributive property of 3 (3m) can be written as 3 (2m + m).