Answer:
38 m²
Explanation:
You want the area of a trapezium with bases 11 and 8 meters, and height 4 meters.
Area formula
The relevant area formula is ...
A = 1/2(b1 +b2)h . . . . . . bases b1 and b2, height h
Application
Your trapezium has bases 11 and 8, and heigh 4. Using these values in the formula, we have ...
A = 1/2(11 +8 m)(4 m) = 38 m²
The area of the trapezium shown is 38 square meters.