00:01
First triangle we have, we have an angle of 54.
00:06
This side here is x and side 9.
00:09
And since it's not a special right triangle, we have to use trig.
00:12
Since we don't know the hypotenuse and we're not trying to find it, we know we have to use tangent.
00:17
So tangent of your angle equals opposite over adjacent.
00:23
And then cross -multify, so multiply these two together.
00:26
Rounding to the nearest tenth, we get 12 .4.
00:29
The next triangle, we have an angle of 46.
00:37
This side here is 24, and we have x here.
00:43
So again, we have the opposite sign, but this time we have the hypotenuse, so we're going to use sign...