<prompt> Etsa equation ho bala sedikadikwe sa sedikadikwe se filweng radius.nan  <response>: Instruction in English: Formulate an equation to calculate the circumference of a circle given the radius. . Response in English: The equation to calculate the circumference of a circle given the radius r is: Circumference 2 × π × rwhere π pi is a mathematical constant approximately equal to 3.14. . Response in Sesotho: Equation ea ho bala selikalikoe sa selikalikoe se fanoeng radius r ke: Circumference 2 × π × r moo π pi e leng palo e sa fetoheng ea lipalo e batlang e lekana le 3.14. 