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Mathematics 8 Online
OpenStudy (anonymous):

Two similar rectangular prisms have a scale factor of 4:1. The smaller prism has a volume of 6 cubic centimeters. What is the volume of the larger prism in cubic centimeters? Okay so the answer key says it's 384 cm^3 but how do you find this?

OpenStudy (mathstudent55):

I'll show you this by example. This is something you need to remember for the future.

OpenStudy (anonymous):

ok

OpenStudy (mathstudent55):

Here are 2 segments of lengths 1 and 2. Obviously the scale factor is 2, right? |dw:1400275995494:dw|

OpenStudy (anonymous):

Yup

OpenStudy (mathstudent55):

Now look at what happens when we deal with areas.

OpenStudy (mathstudent55):

|dw:1400276091729:dw|

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