Respuesta :

musiclover10045

radius = diameter/2

so 28/2=14

 using 3.14 for PI

2*3.14*14 = 87.92 = 88 inches

devonthomashowa
radius = diameter /2 

so radius = 28/2 = 14 

Circumference = 2 x pi x 14 = 28 pi 

or from calculator = 87.96 inches ....correct to 2 decimal places