The area of a trapezoid is given as:
[tex]A=\frac{1}{2}(a+b)h[/tex]
Where a and b are the base lengths of the trapezoid and h is the height.
Substitute a=19, b=5, h=4 into the formula:
[tex]\begin{gathered} A=\frac{1}{2}(19+5)\cdot4=\frac{1}{2}(24)\cdot4 \\ \Rightarrow A=\frac{1}{\cancel{2}^1}(\cancel{24}^{12})\cdot4=12\cdot4=48\, m^2 \end{gathered}[/tex]
The unit of area is square unit, so the unit, in this case, is m².
The correct answer is 48 m².
