mathematics

A wooden stool is in the form of a frustum of a cone with slant edge 40cm,top diameter 30cm and bottom diameter 50cm.
a) calculate the perpendicular height of the stool

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  1. since the radii differ by 10cm,
    h^2 + 10^2 = 40^2

  2. a wooden stool in the form of a frustrum a cone with a slant edge 40cm top diameter 30cm and bottom diameter 50cm calculate perpendicular height of stool

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