Volume for a square pyramid is:
V=1/3•s^2•h, where s = base side lengths, h = height, and V = Volume.
Here are the following measurements of the given pyramid:
s^2 = 9•9 = 81
h = 7
Now, simply input these values into the formula:
V=1/3•81•7
V=(81•7)/3
V=189in^2
Therefore, the volume of the pyramid is 189in^2