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Math Help - height/surface/volume ratios

  1. #1
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    height/surface/volume ratios

    Hope all you experts out there don't mind helping me again. How do I work out the ratio of two heights (4cm and 2cm)? I also need to work out the ratios for surface areas and for volume... Do I find them the same way as finding the height?


    Thanks in advance!!!
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  2. #2
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    the ratio of heights is 2:4 = 1:2
    The ratio of the surface area is 2^2: 4^2 = 4:16 = 1:4
    the ratio for the volume is 2^3: 4^3 = 8:64 = 1:8

    yea should be correct
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  3. #3
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    ratios

    When I type in 2^2:4^2 the answer comes up as 256! Am I doing something wrong?
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  4. #4
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    Quote Originally Posted by bookbaby84 View Post
    When I type in 2^2:4^2 the answer comes up as 256! Am I doing something wrong?
    What are you typing it into? 256= (2^2) to the fourth power.
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  5. #5
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    ratio

    I typed in 2 and then the X2 button, then the ':' button, then 4 and then the X2 button again... Thanks again
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