Trapezoid.

A = (5+4) x 11/2 = 49.5

Long side is 11 in. bottom base is 4 in
Correct? Or you need more info?

4 answers

Where did the 5 come from?

Is the long side one of the parallel sides?
Is the long side one of the parallel sides ? YES

Where did the 5 come from? Slanted top.
I don't understand a slanted top. Are there any perpendicular lines in the figure? Any angle measures given?
I figured it out. Thanks.