Answer :
We have a square pyramid, the formula to find the volume is
[tex]V=\frac{1}{3}a^2h[/tex]a is the measure of the side of the base and h is the height
a=4in
h=3in
we substitute the values
[tex]V=\frac{1}{3}(4)^2\cdot(3)=16in^3[/tex]the volume is 16 cubic inches he volumen is 16 in