Asked by Sandra

I think I got forgotten...
What is the perimeter of triangle PQR with vertices P(–2, 9), Q(7, –3), and R(–2, –3) in the coordinate plane? (1 point)
21 units
25 units - ??
34 units
36 units
Answered by Mia
First draw out your triangle .

It gives you the length of two of the side

Vertices (-2,9) and (-2,-3) have the same x values so the line is straight up and down. Find the distance between the y values to find the length of that side

Vertices (-2,-3) and (7,-3) have the same y values. Find the difference in x values to find that length.

Then use the Pythagorean Theorem to find the last side

Then add all the side lengths for the perimeter
Answered by Sandra
36 units, right?
Answered by Mia
Yes
Answered by Sandra
Thank you
There are no AI answers yet. The ability to request AI answers is coming soon!