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Mathematics, 20.04.2021 01:30 bnation5970

Triangle ABC has the following vertices: A(1,9) B(11,-7) C(βˆ’9,3) Is triangle ABC a right triangle, and why?

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Triangle ABC has the following vertices: A(1,9) B(11,-7) C(βˆ’9,3) Is triangle ABC a right triangle, a...
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