Question 999821
volume is equal to length * width * height.
you do, however, need to convert everything to the same unit of measure.
you have:


length = 180 feet
width = 20 yards
height = 144 inches


you could convert all to yards.
you could convert all to feet.
you could convert all to inches.


the main goal is to convert everything to the same common unit of measure.


i'll convert everything to feet.

length = 180 feet.
length is already in feet.
length is therefore equal to 180 feet.


width = 40 yards.
1 yard is equal to 3 feet.
width is therefore equal to 40 * 3 = 120 feet.


height = 144 inches.
1 inch = 1/12 of a foot.
height is therefore equal to 144 * 1/12 = 12 feet.


your measurements are now in the common unit of feet.


you have:
length = 180 feet
width = 120 feet
height = 12 feet


since volume - length * width * height, you get:


volume = 180 * 120 * 12 = 259200 cubic feet.