Answer:
113.04 ft³ is correct
Step-by-step explanation:
The volume (V) of a cone is calculated as
V = [tex]\frac{1}{3}[/tex]πr²h ( r is the radius and h the height )
There are 2 cones to be summed one with h = 7 , the other with h = 5
Thus
V = [tex]\frac{1}{3}[/tex] π × 3² × 7 + [tex]\frac{1}{3}[/tex]π × 3² × 5
= [tex]\frac{1}{3}[/tex] × 3.14 × 9 (7 + 5)
= 3.14 × 3 × 12
= 113.04 ft²
