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A homeowner wants to pour concrete for a new patio and walkway according to the layout shown above. If the concrete is to be $$\frac{1}{3}$$ foot thick, how many cubic feet of concrete will be needed to form the patio and walkway?
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· 相关考点
4.4.4 梯形
4.4.4 梯形
以上解析由 考满分老师提供。