某宾馆在重新装修后,准备在大厅的主楼梯上铺上红色地毯.已知这种红色地毯的售价为每平方米32元,主楼道宽2米,其侧面如图所示,则购买地毯至少需要________元.
=______｡
=________;
=_______;
________;
______;
=______｡
=________;
=_______;
________;
______;
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