Area of a circle given perimeter

Mathematics
Tutor: None Selected Time limit: 1 Day

Jun 12th, 2015

Thank you for the opportunity to help you with your question!

 1: When the diameter of the city is 3 miles wide 

Area = pi X r^2 = 3 X (1.5) ^2 = 3X2.25 = 6.75 square miles (pi rounded to 3 as mentioned in question)


2: when the diameter of the city is 6 miles wide 

radius = 3 miles

Area = pi X r^2= 3 X 3^2 = 27 square miles

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 12th, 2015

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