mot can phong hinh chu nhat co chieu dai 9m, chieu rong bang 3/5 chieu dai . nguoi ta dung nhung vien gach hinh vuongco canh 30cm de lat nen can phong do , moi vien gach con gia 45000 dong va tien cong de lat nen la 30000 dong /m vuong . hoi tien mua gach va cong lat nen cua can phong do la bao nhieu dong ?
mot nen nha hinh chu nhat co chieu dai 8m chieu rong = 3\4 chieu dai . nguoi ta dung cac vien gach hinh vuong canh 4dm de lat nen nha do gia tien moi vien gach la 20000 dong . Hoi lat ca nen nha thi het bao nhieu tien mua gach
Mot can phong hinh chu nhat co chu vi bang 40m. Chieu dai hon chieu rong 4m. Trung binh co 1m nen nha can 10 vien gach hoa de lat . Gia 1 vien gach la 12500 dong . Hoi .
a) Phai dung bao nhieu vien gach hoa de lat kin nen.
b) Tong so tien de lat can phong biet tien cong tho la 200000 dong.
mot nen nha hinh chu nhat co chieu rong 6m. chieu dai gap ruoi chieu rong. nguoi ta lat nen banh nhung
vien gach hinh vuong co chu vi la 120m. biets gia 1 vien gach la 50000 dong. hoi can bao nhieu tien de mua gach
Mot nen nha hinh hop 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 3dm. Moi vien gach gia 12000 dong . Tinh so tien mua gach de lat ca nen nha do
mot nen nha hinh chu nhat co chieu dai 8m chieu rong =3/4 chieu dai ngui ta dung cac vien gach hih vuong canh 4 dm de lat nen nha do gia tien moi vien gach la 20000 dong hoi lat ca nen nha thi het ba nhieu tien mua gach
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].
mot can phong hinh chu nhat co chieu dai 8 m va bang 4/3 chieu rong nguoi ta dung loai gach men hinh vuong co canh 20 cm de lat kin nen phong do hoi can bao nhieu vien gach de lat ?
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 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
