00:02
Okay, the first thing i'm going to do is i'm going to draw my right triangle and it says that c is my right angle i'm going to go ahead and draw that and then it doesn't matter which ones these are a and b all right now i said that b was 51 .33.
00:15
So we'll say i'm going to draw a little arrow maybe not through my b this is 50 what was it 51 .33 so that means that a must be 90 minus that so that's going to be what a third? let me see, i'm just going to use my calculator.
00:35
90 minus 51 .33.
00:39
That's going to be 90 minus 51 .33.
00:46
38 .67.
00:47
So 38 .67.
00:50
Excellent.
00:51
And now it says that my little b is 15 .34.
00:56
15 .34.
00:57
I'm going to scroll down.
00:59
And in fact, i'm going to rewrite that angle to where it's not in the way.
01:02
That would be what was it 38 .67 38 .67.
01:08
All right so my little b here which is i'm assuming that little b is going to be opposite my big b my angle b and it says that that is 15 .34 15 .34 is going to be 15 .34.
01:25
Okay so here's the idea.
01:28
We need little a this side and we have our angle b and we have our angle b and we have our opposite side from b.
01:37
So we're going to use tangent.
01:39
Tangent is the opposite over adjacent.
01:42
I'm going to write that up here actually.
01:44
Tangent is opposite over adjacent.
01:49
That means that i have this angle b right here.
01:52
So i'm going to say that the tangent of angle b, which is 51 .33, that's going to be equal to my opposite side, which is 15 .34, 434, divided by my adjacent side, which i don't know...