Mathematics, 09.12.2020 22:20, chickenndle7814

What are the coordinates of the orthocenter of △DEF with vertices at D(−1, 2), E(−1, −4), and F(2, −4)?

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What are the coordinates of the orthocenter of △DEF with vertices at D(−1, 2), E(−1, −4), and F(2, −...