SOLUTION: Hannah drew a circle with a radius of 30 centimeters. Jonas drew a circle with a radius of 20 centimeters. What is the approximate difference in the areas of their circles?

Question 829591: Hannah drew a circle with a radius of 30 centimeters. Jonas drew a circle with a radius of 20 centimeters. What is the approximate difference in the areas of their circles?
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
Area of Hannah's circle is (pi)30^2
Area of Jonas's circle is (pi)20^2
So the difference is

is approximately 1570.796 cm^2
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