How do you find the circumference of a circle with a diameter of 4.4 cm?

1 Answer
Sep 28, 2015

Answer:

Use the formula #c=pid# to obtain circumference #~=13.823#

Explanation:

The constant #pi# is the ratio of the circumference of a circle to its diameter (i.e. #pi = c/d#) or more commonly #c =pi*d# (where #c# is the circumference and #d# is the diameter).

You can use a calculator to evaluate this (if your calculator does not have the constant #pi# assigned to a button, you can use #3.14159# which is a reasonable approximation for virtually all situations)