00:01
This problem gives us image of some angles that are created by two lines intersecting, and we want to answer some of these questions we can see.
00:07
And question number four says, which angles are vertical? vertical angles are across from each other.
00:12
So angle a and b, which is choice a, would be considered two vertical angles because they are directly across from each other.
00:21
So all the other pairs would not be considered vertical angles.
00:24
A and c are next to each other.
00:25
C and b are next to each other as well as b and d.
00:28
For number five, it says what is the measure of angle? when c is equal to 110.
00:33
So we have another pair of vertical angles here where if we have angle c, that's congruent to angle d.
00:40
And if angle c is 110 degrees, that means angle d has to also be 110 degrees.
00:45
So that would be c.
00:47
For number six, it says which angles are congruent...