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Momo

  • 5 years ago

The slant height of a regular pentagonal pyramid is 8 cm, and the length of each side of the base is 4 cm. Find the lateral area.

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  1. anonymous
    • 5 years ago
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    LA = (1/2)(perimeter of base)(slant height) LA = (1/2)(2*(4+4))(8) LA = (1/2)(16)(8) LA = 64 cm

  2. momo
    • 5 years ago
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    could that be reduced? because 64 isn't an option for me...

  3. momo
    • 5 years ago
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    here are my options, 32, 60, 80, 160

  4. anonymous
    • 5 years ago
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    Sorry i made a stupid mistake one second

  5. momo
    • 5 years ago
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    oh it's okay :)

  6. anonymous
    • 5 years ago
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    LA = (1/2)(perimeter)(base length) LA = (1/2)((4+4) * 2)(4) LA = 32

  7. momo
    • 5 years ago
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    thanks!!

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