Answer :

Answer:

C 90°

BGD forms a right angle.

Answer:

  C  90°

Step-by-step explanation:

You want to know the measure of angle BGD in the given figure.

Right angles

Where lines cross, if one of the angles is a right angle, they all are. Here, the diagram shows us the angle at G formed by lines BE and AD is a right angle. Hence, angle BGD is a right angle. It has a measure of 90°.