00:02
So if the terminal side of theta lies on the ordered pair 5 negative 6, so we would have 1, 2, 3, 4, 5, 6.
00:18
So 5, negative 6.
00:22
If you draw your right triangle back to the x -axis, the lengths of the side then are 5.
00:30
This side's negative 6, and we'll need to use the pythagorean theorem to figure out the hypothesis.
00:36
News.
00:37
So x squared would equal 5 squared plus negative 6 squared or just 6 squared.
00:45
X squared equals 25 plus 36.
00:50
Excuse me.
00:52
25 and 36 adds up to 61.
00:58
So x equals the square root of, oops, i don't know why i'm doing that, square root of 61.
01:06
So this distance is the square root of 61...