Question

wy bisects ∠vwx. if m∠vwy = 78°, what is the m∠vwx?

Explanation:

Step1: Recall angle - bisector definition

A bisector divides an angle into two equal parts. So $\angle VWX = 2\angle VWY$.

Step2: Substitute the given angle value

Since $\angle VWY=78^{\circ}$, then $\angle VWX = 2\times78^{\circ}=156^{\circ}$.

Answer:

$156^{\circ}$