00:01
All right, and this one says triangle e of g.
00:06
So e, it says f is the right angle.
00:10
And g says ef, or eg is 8, and fg is 2.
00:16
What's the value of the trick ratio to the right triangle? okay, so we got to first use pythagorean theorem.
00:23
So a squared plus 2 squared equals 8 squared.
00:26
So a squared plus 4 equals 64.
00:30
So a squared equals 60.
00:33
Root this and you get a equals the two square root of 15, right? okay.
00:44
So now we've got to find our trig ratios.
00:49
So the sign of g.
00:52
So that's opposite.
00:53
So two square root of 15 over eight, which would reduce to the square root of 15 over four.
01:01
And then tangent of e...