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Anonymous
Obtuse angle question 2017-06-01 02:57:57 Post No. 8949155
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Obtuse angle question 2017-06-01 02:57:57 Post No. 8949155
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Why is the side opposite to an obtuse angle always the longest? i have been brushing up on my geometry and cant really come up with it. obviously you can measure it but without measurements, how is it possible to tell?
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gee I dunno use the fucking cosine theorem maybe
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>>8949155
angle sizes correspond to opposite side lengths
sorry for the bump, have a CAT scan of my skull
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>>8949164
handsome, mf
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>>8949155
i feel bad for you....
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>>8949155
Look at the pic. XC is greater than BC due to the pythagorean theorem.
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>>8949155
Let a be an obtuse angle of a triangle. Then a > 90°. But this means the other two angles < 90°. This a is the largest angle and its corresponding side must be the largest.
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I mean, intuitively, the bigger the angle, the more it has to "stretch," right? I'm sure there's a proof out there, but this seems like one of those intuition things
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Look up "Triangle Inequality"
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>>8950266
This
There's more than 1 proof to this, but more than that it is intuitive. The bigger angle will always get the bigger side.
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Sine rule. Angles and their opposing sides are related. Bigger angle = bigger side
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>>8950312
So bigger dick, bigger brain?
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