How do you find the circumference of a circle with a diameter of 3 inches?

1 Answer
Shantelle
Jun 3, 2018

#3pi# inches or about #9.42# inches(rounded to nearest hundredth's place)

Explanation:

The formula for the circumference of a circle is #2pir# where #r# is the radius, or #pid# where #d# is the diameter.

In this problem, we are given the diameter, so we can use the #pid# formula to find the circumference. Plug in #3# for the diameter:
#pi(3) = 3pi# inches

If you want to simplify this even further, we know that #pi ~~ 3.14#, so #3(3.14) = 9.42# inches(rounded to nearest hundredth's place)

Hope this helps!

Related questions
See all questions in Formulas for Problem Solving
Impact of this question
14066 views around the world
You can reuse this answer
Creative Commons License