00:01
Okay, so the question now is just see, given an angle measurement, in this case, angle 1 is 76 degrees.
00:09
We want to find the measurements of the other three angles.
00:12
Okay, so we're going to use properties of a linear pair or two linear angles and properties of vertical angles.
00:20
Well, actually, we don't even need the properties of vertical angles.
00:23
We can just use linear pair.
00:25
So let's go ahead and just do that.
00:26
So two angles that make up a line like this.
00:31
So there's one line that goes like this, and then two angles that sum up to this line.
00:37
So if you see that one, two, satisfies its property.
00:41
One and four satisfies this property.
00:43
Three and four satisfies his property...