Douglas is placing strings of light around the edge of a circular patio with the diameter of 7.5 M the lights are in length of 1.45 what is the best approximation for how many strings of Lights Dougla

Douglas is placing strings of light around the edge of a circular patio with the diameter of 7.5 M the lights are in length of 1.45 what is the best approximation for how many strings of Lights Douglas needs is 3.14 to approximate pi