Here I am again. And heeeeeeere's the problem:
Find the perimeter of this polygon:
triangle PQR with vertices P(-6,-3), Q(1, -1), and R(1,-5).
So first I drew a triangle (maybe I should have graphed it, but let's just take it from there), then I marked its points (P,Q,R), and used the distance formula to find the perimeter of each side. First I did and , then and , then and and came up with these answers:
Distance of P&Q=7.28, Distance of Q&R=4, and distance of P&R=7.28
Then I added them together and got 18.56 or 18.6.
Is the answer right? I know I'm not as schooled as some of you, but you have to admit this is a little complicated...