Median triangle

Reference triangle: △ABC
  Median triangle: △BGF
Median triangle of △BGF: △BKH
Similarity: △BGF ~ △BKH

In geometry, the median triangle of a given (reference) triangle is a triangle, the sides of which are equal and parallel to the medians of its reference triangle. The area of the median triangle is 3/4 of the area of its reference triangle:

The median triangle of the median triangle is similar to the reference triangle of the first median triangle with a scaling factor of 3/4:

See also

References

  1. ↑ Roger A. Johnson: Advanced Euclidean Geometry. Dover 2007, ISBN 978-0-486-46237-0, pp. 282–283
  2. ↑ Claudi Alsina, Roger B. Nelsen: Charming Proofs: A Journey Into Elegant Mathematics. MAA, 2010, ISBN 9780883853481, p. 165
  3. ↑ Árpad Bényi, Branko Ćurgus: "Outer Median Triangles". In: Mathematics Magazine, Vol. 87, No. 3 (June 2014), pp. 185–194 (JSTOR)