Answer:
B.) [tex]128ft^3[/tex]
Step-by-step explanation:
The base of the pyramid is square shaped with given edge and altitude:
So, the pyramid is a Right square pyramid.
Height of the pyramid(h)=[tex]6 feet[/tex]
Edge of the base(a)= [tex]8 feet[/tex]
Volume of a right square pyramid(V)= [tex]a^2*\frac{h}{3}[/tex]
Putting the given values in the formula:
Volume=
volume of pyramid= [tex]8*8*\frac{6}{3} \\\\64*2\\\\128 ft^3[/tex]
The volume of the square based pyramid is [tex]128ft^3[/tex]
