Chapter 1 Euclidean space - Rice University
Euclidean space 5 PROBLEM 1{4. In the triangle depicted above let L1 be the line determined by x and the midpoint 1 2 (y + z), and L2 the line determined by y and the midpoint 12 (x + z).Show that the intersection L1 \L2 of these lines is the centroid. (This proves the theorem which states that the medians of a triangle are concurrent.) PROBLEM 1{5.
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