Maths Challenge
Maths challenge.net: Triangle Medians
Prove that the centroid, P, splits each median into the ratio 2:1. If you give up, then in the top right corner, you may reveal the solution.
Wolfram Research
Wolfram Math World: Triangle Median
MathWorld provides an example and explanation for the median of a triangle. Lines A1M1, A2M2, and A3M3 are the medians of triangle A1A2A3.
Curated OER
Triangle Medians
MathWorld provides an example and explanation for the median of a triangle. Lines A1M1, A2M2, and A3M3 are the medians of triangle A1A2A3.