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anonymous

  • one year ago

I need help on Geometry! Math isn't my best subject. :/ Looking for a easier way for me to understand how to figure out these sorts of problems as I'm quite slow in this department. As of right now, I'm working on finding out the surface area and volume of prisms. Here is what I need help on:

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  1. anonymous
    • one year ago
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    What is the volume of the prism? The answers provided are: ~1251 cm cubed ~900 cm cubed ~1042.5 cm cubed ~1440 cm cubed

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  2. anonymous
    • one year ago
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    ~25.98 cm cubed ~1558.8 cm cubed ~779.4 cm cubed ~259.8 cm cubed

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  3. anonymous
    • one year ago
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    Last one! This one mentions that the base of this prism is 35 cm squared and then asks the volume as well. The possible answers for this one are: ~336 cm cubed ~210 cm cubed ~262 cm cubed ~280 cm cubed Please don't just give me the answer, I want to be able to understand how to do these so I'll be at least a little less frustrated with myself. xD Thank you for taking the time to read!

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  4. mathstudent55
    • one year ago
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    The volume of a prism is the area of the base times the height. First, figure out which sides are the bases. Find the area of one base. Then find the height, and mulltiply the area of the base you calculated above by the height.

  5. mathstudent55
    • one year ago
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    |dw:1442514046996:dw|

  6. mathstudent55
    • one year ago
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    |dw:1442514083252:dw|

  7. mathstudent55
    • one year ago
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    The first prism has trapezoids as bases. Find the area of one of the trapezoid bases. Then multiply that area by the height of the prism to find the volume of the prism.

  8. anonymous
    • one year ago
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    is it 12..? It's sort of confusing with the numbers everywhere I can't tell which one is assigned to what part of the prism. is 12 the area of one of the trapezoid bases?

  9. mathstudent55
    • one year ago
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    The area of a trapezoid is the the sum of the bases over 2, times the height. |dw:1442516031814:dw|

  10. anonymous
    • one year ago
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    |dw:1442854387435:dw|

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