00:01
We're going to call this angle as x degrees because we don't know what it is.
00:09
It's an obtuse angle because it's more than 90 degrees.
00:14
This angle over here is going to be, we're going to call it as a y degree because that's another angle.
00:23
And based on that drawing, it is an acute angle, less than 90 degrees.
00:28
So problem number 11 says x plus y.
00:31
So what we want to do is use this x angle.
00:39
That's your x.
00:40
You're going to add it with the y.
00:42
So i'm going to draw the y angle backwards so i can try to connect it.
00:50
Oops.
00:51
Hold on.
00:52
There you go.
00:53
Let's start from the center.
00:55
Okay.
00:55
And then that's going to be my y.
00:58
So the combination of these two angles, x and y, will be a bigger obtuse.
01:07
The next problem is number 12, whereas x minus y.
01:11
So what you want to do is you want to start with the angle x.
01:15
Start with the angle x.
01:17
Okay, that's your x...