It is 72.3 square units, approx.
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Area of a nonagon with a circumradius of 2 units is 11.57 square units.
The area of a regular pentagon with a radius of 7 is 10.1716. If the radius was 5, the area would be 7.26543.
a. 2 to 5.
78.53.14 * 5 * 5
Area variesa s pi times the radius squared. 15/3 = 5; 5 squared = 25 A radius of 15 miles grows the area 25 times