Ask Question
14 January, 08:50

What is the circumference of a circle with area 81 / pi square inches?

+1
Answers (1)
  1. 14 January, 11:45
    0
    Area = πr² ⇒

    81π = πr² ⇒ 81 = r² ⇒ r = √81 = 9 in

    Circumference = 2 πr = 2*9*π = 18π in
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What is the circumference of a circle with area 81 / pi square inches? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers