Centroid of a Triangle by M. Pott

Centroid of a Triangle by M. Pott
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2016-04-26 23:02
This example demonstrates the centroid of a triangle by intersecting its three medians. The centroid is a special point inside the triangle that divides each median into a 2:1 ratio. The core mathematical concepts involved include midpoints, line segments, intersections, and the centroid itself. The construction utilizes GeoGebra commands such as Segment, Midpoint, and Intersect to draw the triangle's sides, find the midpoints of each side, draw the medians, and finally determine the centroid's location. This example is suitable for middle school and above students learning about the geometric properties of triangles and the centroid theorem.

GeoGebra Commands & Parameters

  1. Segment(A, B) → f
  2. Segment(B, C) → g
  3. Segment(C, A) → h
  4. Midpoint(C, A) → D
  5. Midpoint(A, B) → E
  6. Midpoint(B, C) → F
  7. Segment(A, F) → i
  8. Segment(C, E) → j
  9. Segment(B, D) → k
  10. Intersect(i, j) → Centroid
  11. Segment(A, E) → l
  12. Segment(E, B) → m
  13. Segment(A, D) → n
  14. Segment(D, C) → p
  15. Segment(C, F) → q
  16. Segment(F, B) → r