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  2. Frustum - Wikipedia

    en.wikipedia.org/wiki/Frustum

    A right frustum is a right pyramid or a right cone truncated perpendicularly to its axis; [3] otherwise, it is an oblique frustum. In a truncated cone or truncated pyramid, the truncation plane is not necessarily parallel to the cone's base, as in a frustum. If all its edges are forced to become of the same length, then a frustum becomes a ...

  3. Tree volume measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_volume_measurement

    The formula for the volume of a frustum of a paraboloid [23] [24] is: V = (π h/2)(r 1 2 + r 2 2), where h = height of the frustum, r 1 is the radius of the base of the frustum, and r 2 is the radius of the top of the frustum. This allows us to use a paraboloid frustum where that form appears more appropriate than a cone.

  4. Tree measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_measurement

    The volume of each segment is calculated as the volume of a frustum of a cone where: Volume= h(π/3)(r 1 2 + r 2 2 +r 1 r 2) Frustum of a cone. A similar, but more complex formula can be used where the trunk is significantly more elliptical in shape where the lengths of the major and minor axis of the ellipse are measured at the top and bottom ...

  5. Heronian mean - Wikipedia

    en.wikipedia.org/wiki/Heronian_mean

    The volume is equal to the product of the height of the frustum and the Heronian mean of the areas of the opposing parallel faces. [2] A version of this formula, for square frusta, appears in the Moscow Mathematical Papyrus from Ancient Egyptian mathematics, whose content dates to roughly 1850 BC. [1] [3]

  6. Cone - Wikipedia

    en.wikipedia.org/wiki/Cone

    A cone with a region including its apex cut off by a plane is called a truncated cone; if the truncation plane is parallel to the cone's base, it is called a frustum. [1] An elliptical cone is a cone with an elliptical base. [1] A generalized cone is the surface created by the set of lines passing through a vertex and every point on a boundary ...

  7. List of centroids - Wikipedia

    en.wikipedia.org/wiki/List_of_centroids

    Volume Cuboid: a, b = the sides of the cuboid's base ... Right circular solid cone: r = the radius of the cone's base h = the distance is from base to the apex ...

  8. Here's Why Testosterone Is a Female Hormone, Too - AOL

    www.aol.com/heres-why-testosterone-female...

    Casperson recommends a transdermal (through the skin) formula, found in a cream, gel, or patch, because it’s more affordable and won’t push your testosterone level too high.

  9. Shell integration - Wikipedia

    en.wikipedia.org/wiki/Shell_integration

    The shell method goes as follows: Consider a volume in three dimensions obtained by rotating a cross-section in the xy-plane around the y-axis. Suppose the cross-section is defined by the graph of the positive function f(x) on the interval [a, b]. Then the formula for the volume will be: ()