Answer:
A= 24 m
Step-by-step explanation:
The formula for the area of a trapezoid is A= [tex]\frac{a+b}{2}[/tex] x h.
Using the formula you plug in the values:
A= [tex]\frac{4 + 12} 2}[/tex] x 3
2. Now you simplify the equation and solve
A = [tex]\frac{16}{2}[/tex] x 3
A = 8 x 3
A = 24
