00:01
Okay, so in this problem, the givens are a equals 2, 3, and negative 5, and b equals 8, 9, 1, c equals 3, 17, 1.
00:10
So if we do, so if we do the formula, so 10, 10 over 2, and then 12 over 2 minus 4 over 2 is 5, 6, and negative 2.
00:31
Means that the midpoint of ab is going to equal 5, 6, and negative 2.
00:40
So to determine the medium from c, that means what we're going to have to do is calculate the midpoint of ab.
00:50
So what we're going to have to do is c, d is equal to square root of 5 minus 3 squared.
01:01
So i'm going to see.
01:02
So on the screen square plus 6 minus 17 squared plus negative 2 minus 1 squared...