00:01
All right, so if we have a circle whose diameter runs through these two points, i can use these two points to find a midpoint, and that would be the center of our circle.
00:11
So the midpoint would be at x1 plus x2 divided in half, and y1 plus y2 divided in half.
00:28
Okay, so that would be negative 2 plus 8 divided by 2.
00:34
And negative 6 plus 10 divided by 2.
00:40
Oops.
00:47
So negative 6 plus 10 divided by 2.
00:50
So that's going to be 6 divided by 2, which is 3, and 4 divided by 2, which is 2.
00:55
So there's the center of the circle.
00:58
And then to figure out its radius, i need to figure out the distance between the two points, and then divide that in half.
01:04
So it's diameter or it's distance.
01:06
I guess d could stand for either one.
01:07
Between these two points would be the square root of.
01:11
X1 minus x2 squared plus y1 minus y2 squared...