Answer:
The base angles are 96 degrees.
Step-by-step explanation:
The top angles are 84 degrees.
All quadrilateral angles must add up to 360 degrees.
The two top angles add up to 168 degrees.
360 degrees - 168 degrees = 192 degrees.
The base angles add up to 192 degrees.
192 divided by 2 = 96.
The base angles are 96 degrees each.
