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Gnoma [55]
3 years ago
9

I need help solving this Geometry problem. Thanks

Mathematics
1 answer:
DaniilM [7]3 years ago
8 0

ΔABC is an obtuse triangle

∠ ABC = ∠ABD + ∠ DBC = 60° + 40° = 100°

thus ∠ ABC = 100° is an obtuse angle

hence ΔABC is an obtuse triangle


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