<span>
C (-3,0,0),(0,5,0),(0,0,-2)
D (-20,0,0),(0,12,0),(0,0,-30)</span>
Step-by-step explanation:
7/ 12 is equivalent to - 7/-12
The area of a trapezoid can be found with this formula:

Where b1 and b2 are the bases and h is the height.
If we plug in what we know we can solve for the height.
We know that b1 = 52, b2 = 42, and A = 1833. Let's solve.