Question

Use the given information to find $m\angle 2$.

$\angle 1$ and $\angle 2$arevertical angles, and $m\angle 1=140°$.

Short answer

The measure of angle $m\angle 2$ is $140°$.

Step-by-step solution

Step 1. Given Information.

$m\angle 1=140°$

Step 2. Concept used.

If two angles are vertical, then their measures are equal.

Step 3. Calculation.

Since $\angle 1$ and $\angle 2$ are vertical angles.

$\begin{array}{c}m\angle 2=m\angle 1\\ =140°\end{array}$

Step 4. Conclusion.

The measure of the angle that is vertical to an angle measuring $140°$ is $140°$.