– π (pi) is a mathematical constant, approximately equal to 3.14159 If we know the circumference of a circle, we can easily find out its radius by rearranging this formula and solving for ‘r’: r = C / ...

Many times in day-to-day life or in academic and professional fields, we may come across situations where we need to calculate the diameter of a circle given its circumference. This simple ...

The chapter on “Circles” forms an important part of Mathematics. This chapter includes many interesting and useful formulae. One such formula is the circumference of the circle. Students must know and ...