Answer:
B.150°
Step-by-step explanation:
A regular hexagon has six sides.
The measure of the interior angle is 120°
At the point where vertices B and E share a common edge, angle BED is 90°
The sum of angle measures at point of intersection of edge BE ,ED and FE is equal to 360°
To get measure of angle DEF will be ;
=360° - {90°+120°}
=360°- {210°}
=150°