Các câu hỏi tương tự
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 nen nha hinh chu nhat co chieu dai 9m, chieu rong bang 2/3 chieu dai. nguoi ta lat nen nha bang cac vien gach hinh vuong canh 3 dm. moi vien gach gia 12000 dong. tinh so tien mua gach de lat ca nen nha do. [dien tich phan gach vua ko 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)
Mot can phong hinh chu nhat co chieu dai 8m, chieu rong bang 3/4 chieu dai. De lat kin nen can phong do nguoi ta dung loai gach men hinh vuong canh 4 dm
a) Hoi de lat kin can phong do can bao nhieu vien gach?
b) Biet rang de lat 1m vuong gach men het 75 000 dong. Vay de lat het can phong do thi het bao nhieu tien ?
mot phong hoc co dang hinh hop chu nhat co chieu dai la 9m, chieu rong la 6m va chieu cao la 5m. nguoi ta quet voi cac buc tuong xung quanh va tran cua can phong do ( chi quet phia trong ). Tinh dien tich can quet voi, biet rang phong do co 4 cua so va 2 cua ra vao cua so hinh vuong moi canh 1,5 m cua ra vao hinh chu nhat rong 1,6 m cao 2,2 m.
cac ban giai ra luon nhe
nguoi ta lat nen can phong hinh chu nhat co chieu dai 9m, chieu rong bang 2/3 chieu dai bang nhung vien gach hinh vuong co canh 50cm .Tinh so vien gach can dung de lat nen van phong do
Mot be nuoc dang hinh hop chu nhat co kich thuoc trong long be la : chieu dai 1,8m,chieu rong 1,2m,luong nuoc dang co trong be la 1944 lit va bang 3/5 the tich cua be.A Hoi khi be day nuoc thi trong be co bao nhieu lit nuoc .B Cac mat xung quanh va day be (phia trong be) duoc op bang cac vien gach men hinh vuong canh 3dm.Hoi nguoi ta da dung bao nhieu tien de mua het so gach men do ,biet rang gia 1m2 gach men la 90 000 dong ?(Dien tich cac mach vua khong dang 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 gach men hinh vuong co canh 4 dm hoi tinh so vien gach can dung de lat nen can phong do
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