The vertices of a sandbox are P(12, 14), Q(12, 17), R(16,17), and S(16,14). The coordinates are measured in feet. What is the perimeter of the sandbox?

Answer 1

Did you plot the points?
I would expect you to recognize that the shape is a rectangle.
Just count the distances.

Answer 2

Is there a way to mathematicaly solve it without plotting it?

Answer 3

well,
PQ = RS = 3
QR = SP = 4

so the perimeter is 2(3+4) = 14