Sagot :
to get the circumference you times 3.14 which is PI and times PI by diameter to get the circumference
sq. of 16*pi/pi
sq. of 16=4
thats ur radius
then 2*r*pi=2*4*pi
=8pi
so diameter is 8 pi
sq. of 16=4
thats ur radius
then 2*r*pi=2*4*pi
=8pi
so diameter is 8 pi