SOLUTION: The area of a circle is 45 square meters. What is its circumference? (Use п = 3.14. Hint: Area of Circle: A = пr2 and Circumference of Circle: C = 2пr)
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Question 280431: The area of a circle is 45 square meters. What is its circumference? (Use п = 3.14. Hint: Area of Circle: A = пr2 and Circumference of Circle: C = 2пr) Answer by user_dude2008(1862) (Show Source):
You can put this solution on YOUR website! Area: A=pi*r^2 ----> 45=pi*r^2 ----> r=sqrt(45/pi)=sqrt(45/3.14)=3.786
Circumference: C = 2pi*r ----> C=2*3.14*3.786=23.776
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