Các câu hỏi tương tự
de lat mot cai san hinh chu nhatco chieu dai la 24 m chieu rong la 18 nguoi ta dung gach hinh vuong co canh dai la 30cm hoi can bao nhieu vien gach de lat nen cai san do (dien tich mach vua khong dang ke)
De lat can phong hinh chu nhat,nguoi ta dung loai gach men hinh vuong co canh 30 cm.Hoi can bao nhiu vien gach de lat kin nen can phong do,biet rang can phong do co chieu rong 6m,chieu dai 9m?(Dien tich phan mach vua khong dang ke)
1) De lat len 1 can phong nguoi ta da dung vua het 150 vien gach hinh vuong co canh 40 cm .hoi can phong do bao nhieu m2 biet S phan mach vua khong dang ke ?
2) De lat nen 1 can phong hinh chu nhat,nguoi ta dung loai gach men hinh vuong co canh 30 cm .hoi can bao nhieu vien gach de lat kin can phong co chieu rong 6 m, chieu dai 9 m? ( S phần mạch vữa không đáng kể )
Mot nen nha hinh chu nhat co chieu rong 6 m,chieu dai bang 4/3 chieu rong.Nguoi ta dung cac vien gach hinh vuong canh 5 de lat nen nha do,moi vien gach gia 25 000 dong.Hoi phai het bao nhieu tien mua gach de lat kin nen nha do ?( Dien tich phan mach vua ko dang ke )
de lat nen mot can phong hinh chu nhat nguoi ta dung loai gach men hinh vuong co canh30cm hoi:can bao nhieu vien ganh de lat kinh nen can phong do biet rang can phong co chieu rong 6m chieu dai 9m dien tich phan mach vua khong dang ke
De lat nen mot can phong hinh chu nhat,nguoi ta dung mot loai gach men hinh vuong co canh30cm.Hoican bao nhieu vien gach de lat kin can phong do,biet rang can phong do co chieu rong6m,chieu dai 9m.biet rang dien tich mach vua khong dan ke
Mot can phong hinh chu nhat co chieu dai 8m,chieu rong bang 3/4 chieu dai . De lat nen can phong do, nguoi ta dung loai gach men hinh vuong canh 4 dm. Hoincan phong duoc lat bang bao nhieu vien gach men do. ( Phan dien tich mach vua ko dang ke
nguoi ta dung cac vien gach hinh vuong co canh 50cm de lat mot san choi hinh chu nhat co chieu dai 54m va chieu rong 42m biet dien tich cac mach vua khong dang ke so vien gach can dung
mot can phong hinh chu nhat co chieu rong 6m,chieu dai gap ruoi chieu rong.nguoi ta lat nen can phong do bang loai gach vuong canh 3dm.
hoi can phong do lat het bao nhieu vien gach(dien tich phan mach vua khong dang ke)