What is the circumference of an 8 inch diameter circle?
February 20th, 2023
##C=8pi##
Just use this: ##C=2piR##
The diameter is 8 and the radius is a half of the diameter, so the radius is 4
##C=Circunference##
##pi~=3.14##
##R=radius##
##C=2times3.14times4##
##color(brown)(C~=25.12##
Or you can answer with ##pi## as a multiplicative constant:
##color(red)(C=8pi##