How do you find the perimeter of the triangle whose vertices are these specific points on a plane (-1,6) (4,-5) (-2, -4)?
A little over
The perimeter is going to be equal to the sum of the lengths of the sides, which can be found by using the distance formula;
Plugging in the points for the first two vertices, we get;
For the second two;
And for the last pair;
So the sum of the three sides is roughly;
You can get a more accurate decimal approximation by using a calculator to evaluate the square root values above instead of approximating them.