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anonymous

  • one year ago

The area of the parallelogram shown is twenty-four millimeters squared. What is the perimeter? Please show the work Here is a more visual picture of the problem http://prntscr.com/88xtrj

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  1. jim_thompson5910
    • one year ago
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    |dw:1440553227664:dw|

  2. jim_thompson5910
    • one year ago
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    let b be the length of the base |dw:1440553299702:dw|

  3. jim_thompson5910
    • one year ago
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    area of parallelogram = base*height so A = b*h 24 = b*8 ... plug in A = 24 and h = 8. now solve for b

  4. anonymous
    • one year ago
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    So whats the perimeter

  5. jim_thompson5910
    • one year ago
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    what is b equal to?

  6. anonymous
    • one year ago
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    Umm.... crud, I'm not sure

  7. anonymous
    • one year ago
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    wait, do I do 24*b8 to find b?

  8. jim_thompson5910
    • one year ago
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    8 times something = 24 what is that something?

  9. anonymous
    • one year ago
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    I don't know... how do I find the something?

  10. anonymous
    • one year ago
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    I'm sorry, I'm just confused :(

  11. jim_thompson5910
    • one year ago
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    try different numbers 8 times 1 = ?? 8 times 2 = ?? 8 times 3 = ?? etc etc

  12. anonymous
    • one year ago
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    OoOO 8*3=24

  13. jim_thompson5910
    • one year ago
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    yes, so the base is 3 |dw:1440553755801:dw|

  14. jim_thompson5910
    • one year ago
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    with ANY parallelogram, the opposite sides are congruent (ie equal) |dw:1440553778132:dw|

  15. jim_thompson5910
    • one year ago
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    to find the perimeter, add up all of the sides

  16. jim_thompson5910
    • one year ago
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    the "8" is NOT one of the sides. So you don't add that to get the perimeter

  17. anonymous
    • one year ago
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    I added all of the sides up, and I got 30, is 30 correct?

  18. jim_thompson5910
    • one year ago
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    30 is the perimeter, good

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