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Math Help - cylinder

  1. #1
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    Jun 2008
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    cylinder

    Hi all, i need a help on a few questions if any would spare a few minutes.

    Calculate the surface area of;
    1. an open top cylinder 84mm diameter by 150mm long.

    Calculate Volume of;

    An ingot 80x10x300mm long is cast into a a cycinder 120mm diameter. Calculate its length and total surface area.

    Thank you for your Time.

    N3_olp
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  2. #2
    Member
    Joined
    May 2008
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    Quote Originally Posted by n3_olp View Post
    Hi all, i need a help on a few questions if any would spare a few minutes.

    Calculate the surface area of;
    1. an open top cylinder 84mm diameter by 150mm long.

    Calculate Volume of;

    An ingot 80x10x300mm long is cast into a a cycinder 120mm diameter. Calculate its length and total surface area.

    Thank you for your Time.

    N3_olp
    1. Circumference = 84pi

    Base = pi(42^2) = 1764pi mm^2

    Outside = 84pi * 150 = 12600pi mm^2

    12600pi + 1764pi = 14364pi mm^2 = Surface area
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