Question

For the diagram above, if $CD,PQ,RS$ are parallel to one another, then $\angle 4=$.

• A. $\angle 10$
• B. $\angle 9$
• C. $\angle 11$

Answer 1

The correct option is A $\angle 10$

For the diagram:
$CD,PQ,RS$ are parallel to one another.
Now, $\angle 4$ and $\angle 10$ are alternate interior angles.
$\therefore$ By alternate interior angle theorem.
$\Rightarrow \angle 4=\angle 10$