153k views
3 votes
The area of a circle is 121 π ft². What is the circumference, in feet? Express your answer in terms of π.

1 Answer

4 votes

Answer:

22π feet

Explanation:

Area of circle = π r ²

121π = πr ²

121 = r ²

r = 11.

diameter D = 2r = 22.

Circumference = π X D

= 22π feet

User Muljayan
by
8.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories