Since bd bisects abc, the two angles are equal.
-4x+33=2x+81
-6x+33=81
-6x=48
x=-8
The first is a trapeze, and the second is a parallelogram, but because it has 4 right angles, it is a special case of parallelograms, and its called a rectangle.
Answer:
B
Step-by-step explanation:
well, im assuming its talking about a triangle. The total number of degrees is 180. I guess you subtract that by 81. You get 99. But there are still the others. Srry this is how far i can help. But you then go with 99 and divide or sum thing.