The area of a trapezoid can be found with this formula:
[tex]A=\frac{1}2(b_1+b_2)h[/tex]
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.
[tex]1833=\frac{1}2(52+42)h\\1833=\frac{1}2\times94h\\1833=47h\\\boxed{h=39\ m}[/tex]
