已知四棱锥如图5 1所示,其三视图如图5 2所示,其中正视图和侧视图都是直角三角形,俯视图是矩形 1求此四棱锥的体积; 2若e是pd Template




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tomski已知四棱锥如图5 1所示,其三视图如图5 2所示,其中正视图和侧视图都是直角三角形,俯视图是矩形 coloring