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小圓的半徑:50.24÷(2×3.14),=50.24÷6.28,=8(米);大圓的半徑:8+1=9(米),小路的面積:3.14×(92-82),=3.14×(81-64),=3.14×17,=53.38(平方米).答:小路的面積是53.38平方米.
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