Definitely helpful if you draw a picture first.
The 1st and the 3rd test are incorrect
Read a column of numbers and interpolate missing data
Find the palindrome
Remove the polynomials that have positive real elements of their roots.
Given a 4x4 matrix, swap the two middle columns
Calculate area of sector
Dimensions of a rectangle
Is this triangle right-angled?
Area of an equilateral triangle
Find a Pythagorean triple
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