You are building a fence that measures 4 meters long by 4 meters wide by 1 meter high. To build the fence you are given boards that measure 1 meter by 0.25 meters. If each fence post must be 1 meter apart, how many boards will it take to build the enclosure?
אני לא מצליח לפתור, מישהו מצליח?
זה לא 12
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