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Math Help - Hexagonal Spherical Pyramid

  1. #1
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    Feb 2009
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    Hexagonal Spherical Pyramid

    Can anyone please help me with this problem. I don't even have an idea how a hexagonal spherical pyramid looks like.

    Find the volume of a hexagonal spherical pyramid whose base angles are 135, 105, 122, 110, 131, and 142 on a sphere of radius 20in.
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  2. #2
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    Joined
    Feb 2009
    Posts
    7

    spherical excess

    Can anyone please help me. All I can solve for is the spherical excess E.

    E=Total angle-Total internal angle of a hexagon
    =(135+105+122+110+131+142)-180*(n-2)
    =745-720
    E=25
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