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anonymous

  • 5 years ago

The pentagonal pyramids are similar h/H=4/7 Volume of large pyramid = ? Volume of small pyramid = 320 cm3

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    use ratio and cross mutip 4/7= 320/H 4H=(7*320) 4H=2,240 H = 560 Volume of large pyramid =560 If I deserve medal then give me one.

  3. anonymous
    • 5 years ago
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    http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4dcc90b68bbf8b0bfc8cf37a

  4. anonymous
    • 5 years ago
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    this one very hard,

  5. anonymous
    • 5 years ago
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    i know that is hard to but if u couldn't do it then i ask my friend tomorrow

  6. anonymous
    • 5 years ago
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    I will try I get back to you later, I have help the boy geomertry home work now

  7. anonymous
    • 5 years ago
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    I will try the best OK

  8. anonymous
    • 5 years ago
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    ok

  9. anonymous
    • 5 years ago
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    hey and here http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4dcc66918bbf8b0babf3f27a

  10. anonymous
    • 5 years ago
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    wait what the ratio for this??

  11. anonymous
    • 5 years ago
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    the only i can do it write eqution ,can't answer number I can find EF = (DC+AB)/2 EF = (20+36)/2=28 28 = EX+XY+YF XY = 28-(EX+YF) If teacher give you a number you can plug in and solve I can go any more father

  12. anonymous
    • 5 years ago
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    oh ok

  13. anonymous
    • 5 years ago
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spraguer (Moderator)
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