Definitely helpful if you draw a picture first.
The 1st and the 3rd test are incorrect
Bottles of beer
Back to basics 23 - Triangular matrix
Cell Counting: How Many Draws?
Create an n-by-n null matrix and fill with ones certain positions
Area of an Isoceles Triangle
Is this triangle right-angled?
Dimensions of a rectangle
Length of the hypotenuse
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