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School-Cotton
on April 8, 2023
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New Orleans teenagers found a new proof of the Pyt...
In the first paragraph under “Deriving lengths of the sides of the smaller triangle”, how do we know the length of the third side is 2a^2/b ?
mathteddybear
on April 8, 2023
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"This" in "This leads to the third side of this triangle to be 2a²/b." means "the same line of reasoning".
it's not even trigonometry in that paragraph, just rudimentary proportions of similar triangles
n3uromancer
on April 8, 2023
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From cosβ = a/c and cosβ = third side/((2ac)/b)
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