00:01
Hopefully you're familiar with sokatoa and right triangles, because that's how i approach these problems.
00:09
So as we're looking at that triangle, i didn't draw it very well, but that's okay.
00:14
I believe this side is 4 and this side is 5.
00:17
Let me double check.
00:21
And they say that this side length is c, but you can actually figure that out because it's the pythagorean theorem 5 squared plus 4 squared is equal to c squared.
00:29
And we're looking at 25 plus 16.
00:33
That's a square of each of those, which would end up being 41 equals c squared.
00:41
So if you want the exact value, which i believe they say, what's the exact value of these, you just leave it as root 41.
00:50
So if you're familiar with sign, it's opposite over hypotenuse.
00:55
So sign of that angle, the opposite side is four, and the hypotenuse is, is root 41.
01:05
Now you might be a student that needs, because some teachers make you rationalize those denominators, that you just multiply top and bottom by root 41...