If a circle has a diameter of 4 inches, what is the circumference?

2 Answers
Jan 7, 2016

#c=12.56#

Explanation:

The circumference of a circle is given by
#c=pid#
Where #c# is the circumference, #pi# is a number and its approximate value is 3.14 and #d# is its diameter.
#implies c=pi4=3.14*4=12.56# inches
#implies c=12.56# inches

Nov 4, 2017

#12.56# #"in"^2#

Explanation:

We know that the diameter is #4 # inches. The circumference can be got by

#color(blue)("Circumference"=pixx"Diameter"#

So,

#rarr3.14*4#

#color(green)(rArr12.56# #color(green)("in"^2#

Hope that helps!!! ☺•☻