Question

Find the perimeter of the triangle with the vertices at (3,−2), (−2,6), and (−6,−3).

Answer 1

Use your distance formula thrice.

Answer 2

\[D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\]Find the lengths of all three sides using this formula, and then add them (perimeter = sum of sides).

Answer 3

ok, I'll try that, thanks!

Answer 4

im getting 36, the work i'm doing is on the computer and it's saying that answer is incorrect