Question

A triangle has side length of

Answer 1

3.8q + 21.2 + 8.3r

The perimeter is all sides added together, therefore our equation looks like this:

$(1.7q + 9.3) + (2.1q + 6.7) + (8.3r + 5.2)$

However, we can get rid of the parentheses and add like terms together.

$1.7q + 9.3+ 2.1q + 6.7+ 8.3r + 5.2$

$1.7q + 2.1q + 9.3 + 6.7+ 5.2 + 8.3r$

$3.8q + 21.2 + 8.3r$