Friday, January 8, 2010

How do I find the height of an object w/ just the length and width given?

A block of wood has a volume of 137mm^3. If the block measures 9.3mm by 5.1mm, what is the height of the block?How do I find the height of an object w/ just the length and width given?
V=lwh


137=(9.5)(5.1)h


137/48.45=48.45h/48.45


h=5.83 mm (about)How do I find the height of an object w/ just the length and width given?
length x width x height = volume, right?





So you have





length (9.3) x width (5.1) x X ( cause youdon't know height) = 137 mm^3.





just solve for x. Divide both sides by lenght. Then divide both sides by width. What you have left is x (or height)
Volume= L x W x H


(divide each side by L x W to isolate H)


H=Volume/L x W





H=137/9.3 x 5.1


H=137/47.43


H=2.88846 mm (approx.)





Now, to check:


Volume= L x W x H


Volume= 9.3 x 5.1 x 2.8


Volume= 47.43 x 2.88846


Volume= 137 mm^3 (approx.)
volume = length x width x height





137 = (9.3)(5.1)h


137 = 47.43 h


h = 137/47.43


h = 2.89mm



well if it is a perfect square than you probrbly know how but otherwise i dont have a clue how to do that

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