mot khoi da hinh lap phuong co canh bang 0,5 m . Biet rang 1dmkhoi da nang 2,5kg . Hoi khoi da nang bao nhieu kg ?

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mot khoi lap phuong bang sat nang 5.4kg. hoi mot khoi lap phuong bang sat co canh bang 1/3 canh cua hinh lap phuong da cho nang bao nhieu gam

Mot khoi kim loai hinh lap phuong co canh la 0,75 . Moi de-xi-met khoi kim loai do can nang 15 kg .Hoi khoi kim loai do can nang bao nhieu kg

1 khoi lap phuong bang kim loai co canh 3 dm biet moi de-xi-met khoi kim loai do can nang 13 kg hoi khoi kim loai do can nang bao nhieu ta

Mot khoi kim loai hinh hop chu nhat co chieu dai la 0,4m chieu rong la 0,3m; chieu cao la 0,2. Mot khoi kim loai hinh lap phuong cung chat, co canh bang trung binh cong cua ba kich thuoc cua khoi kim loai hinh hop chu nhat. Biet rang 1dm³ kim loai do nang 11kg. Hoi, moi khoi kim loai nang bao nhieu kg?

Mot khoi kim loai hinh lap phuong co canh 0,75 m.Mi dm khoi kim loai do can nang 15kg . Hoi khoi kim loai do can nang bao nhieu kg.

mot khoi kim loai hinh lap phuong co canh la 69 cm 1dm3 kim loai do can nang 13,5 kg hoi khoi kim loai do can nang bao nhieu kg 

Mot khoi lap phuong A bang sat can nang 5.4 kg. Hoi mot khoi lap phuong B bang sat co canh bang 1/3 canh cua khoi A thi can nang bao nhieu gam ?

mot khoi kim loai hinh lap phuong co canh 18cm.biet 1cm3 nang 30g.hoi khoi kim loai do nang bao nhieu kg