Question

How much water will be needed to completely fill a rectangular vase that has a length of 4 inches, a width of 4 inches, and a height of 16 inches?

24 cubic inches
80 cubic inches
128 cubic inches
256 cubic inches

Answer 1

find the volume = l*w*h

Answer 2

256 cubic inches...the way to figure it out is as follows:
Find the volume of the rectangular vase: Volume=length X width x height
the key here is to keep track of the units. The units of length, width and height area all inches so we simply plug them in
Volume= 4 inches x 4 inches x 16 inches = (4x4x16) inches^3 or we simply write 256 cubic inches (cubic denotes volume -square inches is for area)