For a round pool, a 1-meter-wide path should be paved around it. How many square meters is the area of the path?

Radius of inner circle: 4 △ 2 = 2 (m), area of path: 3.14 × (1 + 2) 2-3.14 × 22 = 3.14 × (32-22) = 3.14 × 5 = 15.7 (M2); answer: area of path is 15.7 m2

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