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Find Volume

Find Volume
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2022-07-08 15:39
Solid GeometryCalculusIntegral
This example demonstrates how to find the volume of a solid using GeoGebra. Key mathematical concepts include calculus and solid geometry. The Surface command is used to construct the solid, and Textfield is used for annotations. Suitable for high school and above students or teachers.

GeoGebra Commands & Parameters

  1. Surface(xmin, (u * ymin(xmin)) + ((1 - u) * ymax(xmin)), (v * zmin(xmin, (u * ymin(xmin)) + ((1 - u) * ymax(xmin)))) + ((1 - v) * zmax(xmin, (u * ymin(xmin)) + ((1 - u) * ymax(xmin)))), u, 0, 1, v, 0, 1) → left
  2. Surface(xmax, (u * ymin(xmax)) + ((1 - u) * ymax(xmax)), (v * zmin(xmax, (u * ymin(xmax)) + ((1 - u) * ymax(xmax)))) + ((1 - v) * zmax(xmax, (u * ymin(xmax)) + ((1 - u) * ymax(xmax)))), u, 0, 1, v, 0, 1) → right
  3. Textfield(xmin) → textfield1
  4. Textfield(xmax) → textfield2
  5. Textfield(ymin) → textfield3
  6. Textfield(ymax) → textfield4
  7. Textfield(zmin) → textfield5
  8. Textfield(zmax) → textfield6
  9. Surface((u / 3 * xmin) + ((1 - u / 3) * xmax), ymin((u / 3 * xmin) + ((1 - u / 3) * xmax)), (v / 3 * zmin((u / 3 * xmin) + ((1 - u / 3) * xmax), ymin((u / 3 * xmin) + ((1 - u / 3) * xmax)))) + ((1 - v / 3) * zmax((u / 3 * xmin) + ((1 - u / 3) * xmax), ymin((u / 3 * xmin) + ((1 - u / 3) * xmax)))), u, 0, 3, v, 0, 3) → front
  10. Surface((u / 3 * xmin) + ((1 - u / 3) * xmax), (v / 3 * ymax((u / 3 * xmin) + ((1 - u / 3) * xmax))) + ((1 - v / 3) * ymin((u / 3 * xmin) + ((1 - u / 3) * xmax))), zmax((u / 3 * xmin) + ((1 - u / 3) * xmax), (v / 3 * ymax((u / 3 * xmin) + ((1 - u / 3) * xmax))) + ((1 - v / 3) * ymin((u / 3 * xmin) + ((1 - u / 3) * xmax)))), u, 0, 3, v, 0, 3) → up
  11. Surface((u / 3 * xmin) + ((1 - u / 3) * xmax), ymax((u / 3 * xmin) + ((1 - u / 3) * xmax)), (v / 3 * zmin((u / 3 * xmin) + ((1 - u / 3) * xmax), ymax((u / 3 * xmin) + ((1 - u / 3) * xmax)))) + ((1 - v / 3) * zmax((u / 3 * xmin) + ((1 - u / 3) * xmax), ymax((u / 3 * xmin) + ((1 - u / 3) * xmax)))), u, 0, 3, v, 0, 3) → back
  12. Surface((u / 3 * xmin) + ((1 - u / 3) * xmax), (v / 3 * ymax((u / 3 * xmin) + ((1 - u / 3) * xmax))) + ((1 - v / 3) * ymin((u / 3 * xmin) + ((1 - u / 3) * xmax))), zmin((u / 3 * xmin) + ((1 - u / 3) * xmax), (v / 3 * ymax((u / 3 * xmin) + ((1 - u / 3) * xmax))) + ((1 - v / 3) * ymin((u / 3 * xmin) + ((1 - u / 3) * xmax)))), u, 0, 3, v, 0, 3) → down
  13. Element(vdir, faces) → Selectvec

AI Drawing Prompt Reference

Create a 3D solid surface assembled from several parametric surface patches to illustrate a volume-finding setup. Start by defining xmin and xmax. Build two vertical surface pieces at the left and right sides by interpolating between ymin(x) and ymax(x), and between zmin and zmax, with parameters u and v ranging from 0 to 1. Next, construct four additional surface patches to complete the boundary: a front surface and a back surface varying over scaled u and v (using u/3 and v/3), plus an up surface and a down surface that similarly connect the corresponding top and bottom z-limits. Finally, place text labels at xmin, xmax, ymin, ymax, zmin, and zmax to mark the key bounding values.
The prompt above was compiled from the original drawing commands and is for reference only.