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elixir [45]
3 years ago
14

Helpppppppppppppppppppppppp

Mathematics
1 answer:
pogonyaev3 years ago
3 0

Answer:

I'm not sure about "11" but  12. is "by the definition of right angles", and 16. is "by the SAS(side angle side) congruency theorem"

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3 years ago
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