A cylinder H cm high has a circumference of C cm. A string makes exactly N complete turns round the cylinder while its two ends touch the cylinder's top and bottom. How long is the string in cm?
Which values occur exactly three times?
Find the two-word state names
Is the Point in a Circle?
subtract central cross
04 - Scalar Equations 1
Speed of light:Experiment
Slicing the cube
How many rectangles in a grid ?
Number of divisors of a given number
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