If an equilateral triangle has area A, then what is the length of each of its sides, x?
Image courtesy of Wikipedia.
Definitely helpful if you draw a picture first.
Knight's Tour Checker
Find a subset that divides the vector into equal halves
Duplicate each element of a vector.
Check if number exists in vector
Side of a rhombus
Dimensions of a rectangle
Length of the hypotenuse
Is this triangle right-angled?
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