In three-dimensional space, a spherical shell can be constructed from two concentric spheres. Determine the volume of a spherical shell whose inner radius is r1 and outer radius is r2.
Find the sum of the elements in the "second" diagonal
Is the Point in a Circle?
Rotate matrix by -90 degrees
Area of a Square
Average of odd values
Perimeter of a quadrilateral
Calculating Ring Area
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