Assuming the question is to find the area, the answer is 27.5(unit)^2.
I've given you the answer, but I'm also going to give you an explanation in case you decide that you want to learn how to do it.
This is a trapezium.
To find the area of a trapezium, the first step is to add A and B (the top and bottom) and then half it. In this case, it would be (4+7)/2 = 5.5.
The second and last step is to multiply that product (1/2(a+b) or 5.5 in this case) by the vertical height (5 in this case).
