Question

Which of the following pairs of angles is vertically opposite angles?

• A. $\angle 1\text{\&}\angle 2$
• B. $\angle 3\text{\&}\angle 4$
• C. $\angle 2\text{\&}\angle 3$
• D. $\angle 1\text{\&}\angle 3$

Answer 1

The correct option is D $\angle 1\text{\&}\angle 3$

When two lines intersect, the opposite angles are equal and are called vertically opposite angles.

In the given figure, $\angle 1\text{\&}\angle 3$ and $\angle 2\text{\&}\angle 4$ are the pairs of vertically opposite angles.