Which equation can be used to calculate the area of the shaded triangle in the figure below?

Answer:
A
Step-by-step explanation:
The area (A) of a triangle is calculated using the formula
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
here b = 14 and h = 4, hence
A = [tex]\frac{1}{2}[/tex] (14 × 4) = 28