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### Course: 6th grade foundations (Eureka Math/EngageNY)>Unit 5

Lesson 3: Topic C: Foundations

# Measuring volume as area times length

To calculate the volume of a rectangular prism, you can multiply the dimensions (width, depth, and height) together in any order. For example, a prism that is 2cm wide, 3cm deep, and 4cm tall has a volume of 24 cubic centimeters. Created by Sal Khan.

## Want to join the conversation?

• Can't height also be called depth?
• I guess? But it would be kinda depends how you look at the cube.
• why did he put the same answer even though he got the answer with (2*4)*3 and (4*3)*2
(1 vote)
• It is because of the associative property of multiplication. It states that the place of the parentheses doesn't matter and will equal the same answer.
• Can height be depth.. orrr?
• yes if you go down not up I guess
• How can you find the volume of a Decagon
• You can't. A decagon is a 2D shape, and you can only get the volume of things that are 3D
• I have a question...
How do I measure volume, on a 7ft width of a rectangle,a 9in length, and a 2ft height?
• Multiply 7 by 9 by 2. Formula is w times l times height. Plug in the numbers and you will get 126
• how do you measure oval
• Its basically a type of circle so I think pi
• cant length be height.
• Depending on which way you think about it, yes, length can be height.
• i'm confused on how you get the volume of an object