00:01
Alright, so in this problem, we have this plane, and then two people recorded the angle measurement from them.
00:13
So one of them recorded 14 degrees, another one recorded 8 degrees, and they were 3 .4 miles apart.
00:25
And we want to find this height right here at the plane.
00:31
So to do that, we're going to use the law of signs.
00:36
But first we need to find some more angles in this green triangle.
00:41
So to do that, notice that right here.
00:45
This is a flat line, so it's 180 degrees.
00:49
But we know that this portion of the angle is 14.
00:53
So 180 minus 14 is 166 degrees.
00:59
And we know that all the angles of a triangle add up to be 180...