求详解,怎么算都跟答案不一样.If there is no waste ,how many square yards of carpeting is needed to cover a rectangular floor that is 12 feet by 18feet?(1yard=3feet)

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求详解,怎么算都跟答案不一样.Ifthereisnowaste,howmanysquareyardsofcarpetingisneededtocoverarectangularfloorthatis1

求详解,怎么算都跟答案不一样.If there is no waste ,how many square yards of carpeting is needed to cover a rectangular floor that is 12 feet by 18feet?(1yard=3feet)
求详解,怎么算都跟答案不一样.
If there is no waste ,how many square yards of carpeting is needed to cover a rectangular floor that is 12 feet by 18feet?(1yard=3feet)

求详解,怎么算都跟答案不一样.If there is no waste ,how many square yards of carpeting is needed to cover a rectangular floor that is 12 feet by 18feet?(1yard=3feet)
12feet=12/3=4yard 18feet=18/3=6yard
s=4*6=24square yards