If an equilateral triangle has area A, then what is the length of each of its sides, x?
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Definitely helpful if you draw a picture first.
Replace NaNs with the number that appears to its left in the row.
Back to basics 21 - Matrix replicating
06 - Matrix Equations 2
Area of an Isoceles Triangle
Find a Pythagorean triple
Length of the hypotenuse
Is this triangle right-angled?
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