00:01
Solve the triangle with the following information.
00:04
So let's draw this in here.
00:07
So i'm going to start with angle b is 28 degrees.
00:11
Angle c is 78 degrees.
00:14
And side c equals 44.
00:18
First of all, let's find angle a.
00:20
Angle a is simply going to be 180 minus 28, minus 78, because of some of the angles of a triangle is 180.
00:35
So 180, minus 78, minus 28, is going to be 74 degrees.
00:43
Now that we have that information, we can find side b and side a by using the law of signs.
00:52
We'll start with finding a.
00:54
We can say a over sign a is c over.
01:00
Over sine c.
01:03
So i'm going to say a over sign of 74 equals 44 over the sign of 78.
01:13
We can solve for a by simply multiplying by the sign of 74...