Definitely helpful if you draw a picture first.
The 1st and the 3rd test are incorrect
Remove the polynomials that have positive real elements of their roots.
Reverse the vector
length of a vector
find the surface area of a cube
Add offset to a signal
Find a Pythagorean triple
Is this triangle right-angled?
Area of an equilateral triangle
Length of a short side
Side of a rhombus
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