Let a triangle have angles , , and , then inequalities include
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(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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(11)
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(12)
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(Siddons and Hughes 1929, p. 283), and
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(13)
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(Weisstein).
See also
Triangle Inequality
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References
Siddons, A. W. and Hughes, R. T. Trigonometry, Parts III-IV. London: Cambridge University Press, 1929.Referenced
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Triangle Inequalities
Cite this as:
Weisstein, Eric W. "Triangle Inequalities."
From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/TriangleInequalities.html
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