Answer:
B
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 = 4 and h = 6, thus
A = [tex]\frac{1}{2}[/tex] × 4 × 6 = 2 × 6 = 12 in² → B