Alternate Interior Angles Theorem

Q. In the given figure, AB||CD then the value of x is

1. ${235}^{\circ }$
2. ${285}^{\circ }$
3. ${75}^{\circ }$
4. ${220}^{\circ }$

Q. In the given figure, if $\angle 4={28}^{\circ }$, then $\angle 6=?$

1. 28

Q. If lines l || m are intersected by lines n || o and $\angle 1={34}^{\circ }$ then what is $\angle 8^{\prime }$?

1. 146

Q. In the given figure PQ || BC, $\angle 4=\angle 5$ and QB bisects $\angle PQC$. Find $\angle 1$.
[3 Marks]

Q. Question 2
In the figure, $\angle 1={60}^{\circ }and\angle 6={120}^{\circ }$. Show that the lines m and n are parallel.