contestada

Find the exact circumference of a circle with the given radius. 5 inches C = 2.5π in. 10π in. 25π in.

Respuesta :

The circumference, C, of a given circle may be calculated through the equation,
         
                                   C = 2πr

where r is the radius. 

Substituting the known values from the given in this item,
                                    C = 2(π)(5 in)
                                    C = 10π in

Thus, the answer is this item is the second choice.