Let's do this question in the figure cupie is parallel to Islam, all right, and we need to find the
value of it, which is this angle over here.
Now, pause the video, give it a try, and then let's do it together.
All right.
We are back.
I hope you have given it a try.
Let's do it together.
It's given that cupie is parallel to this are these two lines are parallel.
Let's construct a line over here such that in is parallel to cupie and it'll be parallel to S.R..
Right.
Because these two lines are parallel to each other, if any, parallel to one of them and will be parallel
to the other as well.
All right.
So this line over here is parallel to both cupie and S.R..
All right.
Now let's divide this angle it into a one and a two.
Right.
Aspinall Construction with Ehle.
We have divided into two angles, even Annita.
Now, you can see over here that is equal to A1 plus A2.
All right.
Now, A1 will be equal to this angle over here, which is PKU D, right.
Because these two angles are alternating angles.
Right.
B and are parallel and Cutey is acting as the transversal.
Therefore A1 is equal to 60 degrees.
Right.
Because they are alternating angles and t cupie is equal to.
Sixty degrees.
All right, let's move on now to will be equal to anxiety, as are these two angles are also alternate
interior angles, white because it is parallel to Lyness, R and D is acting as the transversal right.
Therefore, a two will be equal to thirty degrees.
Right.
Because it is equal to Angle DSR.
All right, and he has given us 30 degrees over here, therefore we know is equal to A1 plus A2 therefore
is equal to 60 plus 30, which is equal to 90 degree level.
The correct answer is option C, that's 90 degrees.