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.
Find common elements in matrix rows
Replace NaNs with the number that appears to its left in the row.
Project Euler: Problem 8, Find largest product in a large string of numbers
Matrix to column conversion
Is this triangle right-angled?
Area of an Isoceles Triangle
Length of the hypotenuse
Find a Pythagorean triple
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