00:03
Okay, so the first thing we're going to have to do is to understand the question.
00:09
Okay, so it says in the diagram below, line ad is equal to line ae.
00:17
So that means that this line and this line are equal.
00:22
So i put these two lines like this on ad and ee to remind ourselves that they're equal.
00:32
The next thing says that line b .a.
00:35
Is parallel to line c .e.
00:39
So that means this line, sorry, that's really crooked, and this line are parallel.
00:48
And the next thing says, line c -b and line d -a are also parallel.
00:56
So this line and this line are parallel.
00:58
So basically we're dealing with a parallelogram and a triangle.
01:04
The next thing they're telling us is that angle d -a -e, so that's the angle formed over here is 56 degrees so this is 56 degrees now they want just to find angle b cd so that's this angle right over here huh okay so the first thing you have to remember is that when you add up all the inner angles of a triangle they equal to 180.
01:45
So since a .e and ad are exactly the same and they're, how do you say it, they're both, like, there's a horizontal line that passes through them both at the same point and it's like a, like a perfectly horizontal line.
02:09
I forgot how you say that.
02:11
So anyways, that means that this angle and this angle are going to be exactly the same.
02:19
So you do 180 equals 56 plus.
02:26
So we're going to call these angles x plus 2x.
02:32
So then you solve for that.
02:36
Okay...