Respuesta :
Hey there o see to need help well I am here to do just that you have to multiply 8.1 x pi(3.14) and get 25.434
circumference of a circle = 2πr
circumference = 2xπx8.1
=16.2π cm
=50.89cm (2dp)
circumference = 2xπx8.1
=16.2π cm
=50.89cm (2dp)