mktz97fh6w mktz97fh6w

22-11-2022
Mathematics

contestada

Fie punctele necoplanare A, B, C, D şi punctele M, N, P, R, mijloacele segmentelor BD, DC, CA,
respectiv AB. Arătaţi că:
a PR || (BCD);
b NP || (BDA);
c MR || (ADC).

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