Volume of square pyramid can be calculated by the formula :
V=
a is the length of base and h is the height of the pyramid.
In the given figure a= x in.and h =
in.
Volume of pyramid given V =486 cubic inches.
Substituting these values in volume of pyramid we have:
486=
÷ 3
Or 486=
486= 
Multiplying both sides by 12
5832 =

Or x= 18 in.
I think the answer is D, None of the above
Answer:
5,114.6
Step-by-step explanation:
5.1146 x 10^3 means move decimal point 3 to the right to get the answer