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In the sixth grade math, a 2-meter-wide path was paved around a circular flower bed with a circumference of 62.8 meters. What is the area of this path?
Solution: radius of inner circle: 62.8÷3. 14÷2= 10 (m),

Radius of excircle: 10+2= 12 (m);

Area of the path: 3.14× (122-102),

=3. 14×( 144- 100),

=3. 14×44, = 138.5438+06 (m2);

A: The area of this path is 138.438+06 square meters.

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