00:01
This problem wants us to find the perimeter of the triangle with vertices negative 4 ,0, negative 1 ,6, and 4 negative 2, 2 ,000 2, and 4 negative 2 ,000 2 ,000, 2 ,000, 2, 1 squared, with the square root of that entire expression.
00:16
And to make this a little simpler to keep up with, we're going to label all of our sides as a, b, and c.
00:23
And once we find the distance from point to point, we've found the length of the side that would work for that triangle.
00:29
So first, we're going to find the distance or the length for a.
00:32
And to do that, i'll say that my x2 is negative 6, my x1 is 0, squared plus my y2 of negative 1 minus my...
00:46
This problem wants us to find the perimeter of the triangle with the given vertices shown.
00:51
And to do that, we need the distance from point to point for all three sides, because if we have the distance, we have the length, and then we can add all of our links together.
01:00
The first distance will find, or length will find, is from negative 4, 0 to negative 1, negative 6.
01:05
So that distance would give us an x2 value of negative 1 minus an x1 value of negative 4, and that would be squared, plus our y2 value of negative 6 minus our y1 value is 0 squared.
01:21
And when we evaluate that, that's going to give us negative 1 minus a negative 4, so negative 1 plus 4, which is 3.
01:27
3 squared gives us 9...