The Radius of Smaller Circle of Lune is the radius of the circle with lesser size, out of the two circles using which the Lune is created. And is denoted by rSmaller. Radius of Smaller Circle of Lune is usually measured using the Meter for Length. Note that the value of Radius of Smaller Circle of Lune is always positive. Typically, the value of Radius of Smaller Circle of Lune is greater than 0.