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sleet_krkn [62]
3 years ago
9

How to tell if a triangle is acute or obtuse from side lengths?

Mathematics
1 answer:
zavuch27 [327]3 years ago
4 0
Let the  3 sides be a,b and c.  Take the longest side c:-

then for an acute triangle  c^2 < a^2 + b^2

and  for an obtuse triangle c^2  > a^2 + b^2


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