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Area of a 3D Triangle

Area of a 3D Triangle
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2019-01-04 11:35
TriangleCoordinate GeometrySolid Geometry
This example demonstrates how to calculate the area of a triangle in 3D space. Key mathematical concepts include the formula for the area of a triangle and 3D geometry. Using GeoGebra commands such as Translate, Polygon, and Area, you can dynamically adjust the vertices of the triangle and observe changes in its area. Suitable for high school and above students learning 3D geometry and triangle area calculation.

GeoGebra Commands & Parameters

  1. Translate(v1, A) → v
  2. Translate(w1, A) → w
  3. Polygon(A, B, C) → Trian, c, a, b
  4. Textfield(A1) → F1
  5. Textfield(A2) → F2
  6. Textfield(A3) → F3
  7. Textfield(B1) → G1
  8. Textfield(B2) → G2
  9. Textfield(B3) → G3
  10. Textfield(C1) → H1
  11. Textfield(C2) → H2
  12. Textfield(C3) → H3
  13. Translate(vxw1, A) → vxw
  14. Area(Trian) → testArea
  15. Length(vxw) → lng