Definitely helpful if you draw a picture first.
The 1st and the 3rd test are incorrect
Replace NaNs with the number that appears to its left in the row.
Numbers with prime factors 2, 3 and 5.
Longest run of consecutive numbers
Side of a rhombus
Vectors counting by 2
Length of a short side
Area of an equilateral triangle
Is this triangle right-angled?
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