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Average Sample Problem
Step 4
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Step 4
Set up the solution--check units.
The problem
The Berliner Lecture Room (PSB 180) at Bryn Mawr College is
approximately 42.8 feet long by 26.3 feet wide by 11.6 feet tall.
What is the volume of this room in cubic centimeters?
You may be thinking...
Volume is found by multiplying length times width times
height. This results in units of length3, appropriate
units for volume. However, the problem specifies that the answer must
be in cubic centimeters, requiring an additional step.
To find the volume, multiply length times width times height and then
do the conversion to cm3.
Check units
Note: If the conversion factors were not cubed, the units would
be incorrect. Checking the units before doing the calculation will
often alert you to these types of errors.
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