Simple radius finder for one unknown.

"Radius Finder App" is a basic circle values finder in gamemorph style. You can find and calculate radius, circumference and diameter by one known value. Free online math game about circle properties and calculations. Interactive circle study. Fun math educational game, suitable for online lessons and interactive classes. Part of the Fun Interactive Mathematics educational tools. Online math game.

There are 3 main lines. Every line have one imput field and two output fields. If you know the circumference of the circle enter it in the upper most line to find the diameter and the radius of the circle. If you have the diameter of the circle, enter it in the second line and so on.

In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel. The typical abbreviation and mathematical variable name for radius is r. By extension, the diameter d is defined as twice the radius. The radius of the circle with perimeter (circumference) C is r=C/2Pi