mot be boi hinh hop chu nhat co chieu dai 50m,chieu rong 30m,sau 3m .hoi
a)can dug bao nhieu vien gach men ginh chu nhat co kich thuoc chieu rong 20 cm va chieu dai 25 cm de lat ben trong be boi noi tren
b) can dung bao nhieu lit nuoc de be boi day 95%the tich be boi do
mot be boi co chieu dai 50m,chieu rong 3m.Hoi
a>Can bao nhieu vien gach men co kich thuoc 20cm x 25cm de lat kin ben trong be boi
b>Neu dung may bom moi gio bom 5m3 nuoc thi mat bao lau se day 90% the tich cua be
Mot be boi dang hinh hop chu nhat co chieu dai 50m ,chieu rong 30m ,chieu cao 3m. hoi can bao nhieu vien gach men hinh chu nhat co chieu dai 25cm ,chieu rong la 20cm de lat kin phan ben trong be boi noi tren ? biet rang dien tich cac manh vua khong dang ke
mot be boi dang hinh hop chu nhat co chieu dai 50m chieu rong 30m chieu cao 3m hoi can bao nhieu vien gach men hinh chu nhat co chieu rong 20cm va chieu dai 25cm de lat kin phan ben trong be boi noi tren biet rang dien tich cac mach vua khong dang ke
mot be boi co chieu dai 50m chieu rong 30m sau 3m hoi can bao nhieu vien gach men co kich thuoc 20cm va 25cm de lat kin be boi do
1 be boi dang hinh hop chu nhat co chieu dai 50m , chieu rong 30 m chieu cao 3m . hoi can bao nhieu vien gach men hinh chu nhat co chieu rong 20cm va chieu dai 25cm de lat kin phan ben trong be boi noi tren ? Biet rang dien tih cac mach vua khong dang ke
mot be boi dang hinh hop chu nhat co kich thuoc trong long be la chieu dai 24m,chieu rong 18m.Be dang chua 453,6m muc nuoc trong be len toi 3/4 chieu cao cua be
a,Hoi chieu cao cua be la bao nhieu m?
b hoi be boi do neu chua day nuoc thi duoc bao nhieu m khoi?
c de tan trang lai be boi nguoi ta lat gach men xung quanh thanh be cao den 1,2m .Hoi phai can bao nhieu vien gach men hinh vuong co canh 0,3m de lat?Biet rang dien tich phan mach vua (ho) khong dang ke
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 cai be dang hnh hop chu nhat co chieu dai 80cm ,chieu rong 50cm, chieu cao 40cm,Hoi A)can do them bao nhieu lit nuoc de co nua be nuoc,B)khi chua nua be nuoc nguoi ta tha 1 vien gach co kich thuoc chieu dai 20cm, cjieu rong 10cm, chieu cao 5cm,vao be nuoc thi nuoc trong be dang cao bao nhieu cm