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mot hinh thang co dien tich la 191,76cm2. neu mo rong day be 4cm thi dien tich tang them 20,4 cm2 . tinh moi day cua hinh thang biet day be kem day lon 9,6 cm
mot hinh thang co dien tich la 191,76 cm2. neu mo rong day be 4 cm thi dien tich tang them 20,4 cm2. tinh moi day hinh thang biet day be kem day lon 9,6cm.
( ^-^ ) : cho luon bai giai ra nha !!!
Mot hinh thang co day be la 19 cm va bang 1/2 day lon. Neu mo rong day lon them 4,5 cm thi dien tich tang them 27 cm2. Tinh dien tich hinh thang ban dau.
Bai 1 :Mot thua ruong hinh thangco trung binh cong hai day la 301,5 m . Neu tang day lon them 5,6 m thi dien tich thua ruong tang them 336 m2 a}tinh dien tich thua ruong hinh thang bang don vi dam2b}Cu 300 m2 thu duoc 22,5 tan thoc . Tinh xem tren ca thua ruong thu hoach duoc bao nhieu kilogam thoc ?Bai 2 : Mot hinh thang co dien tich 3780 m2 va chieu cao 45 m . Day be bang 3/5 day lon . Tinh moi day cua hinh thang ?Bai 3:Mot khu ruong hinh thang co chieu cao 50 m . Day lon 145 m ; day be 95 m ....
Đọc tiếp
Bai 1 :Mot thua ruong hinh thangco trung binh cong hai day la 301,5 m . Neu tang day lon them 5,6 m thi dien tich thua ruong tang them 336 m2
a}tinh dien tich thua ruong hinh thang bang don vi dam2
b}Cu 300 m2 thu duoc 22,5 tan thoc . Tinh xem tren ca thua ruong thu hoach duoc bao nhieu kilogam thoc ?
Bai 2 : Mot hinh thang co dien tich 3780 m2 va chieu cao 45 m . Day be bang 3/5 day lon . Tinh moi day cua hinh thang ?
Bai 3:Mot khu ruong hinh thang co chieu cao 50 m . Day lon 145 m ; day be 95 m . Moi met vuong thu hoach duoc 1,74 kg thoc . Hoi nguoi ta thu hoach duoc bao nhieu tan thoc tren thua ruong ay ?
Bai 4: Mot hinh thang co chieu cao 34 dm . Day lon gap doi day be . Dien tich hinh thang bang dien tich 1 hinh chu nhat chieu dai 68 dm ; chieu rong 30 dm . Tinh do daii moi day hinh thang ?
Bai 5 : Mot hinh thang co day lon 60 cm ; day be 38 cm . Neu keo dai day lon them 20 cm va day be 12 cm ve cung mot phia thi dien tich se tang them 512 cm2 . Tinh dien tich hinh thang luc dau ?
Bai 6:Mot hinh thang vuong co dien tich 85 dm2 va hieu 2 day la 3 dm . Neu keo dai day lon them 4 dm nua thi dien tich tang them 20 dm2 . Tinh do dai moi day cua hinh thang vuong do ?
giai han ra nha minh cho moi bai 100 mk nha tong cong se la 600 mk do nha ! ai giai xong ket ban luon voi minh nha ! thanks!
mot hinh thang vuong co day be=3\5 day lon va chieu cao=23cm nguoi ta mo rong hinh thang de duoc HCN thi dien tich cua no tang them 207cm2.hay tinh dien tich hinh thang luc ban dau
mot hinh thang co day be bang 3/5 day lon va co chieu cao bang 23cm.Nguoi ta mo rong hinh thang bang cach keo dai day be cho bang day lon da duoc1 hinh chu nhat ,sau khi mo rong thi dien tich tang them 207cm vuong .Tinh dien tich hinh thang luc chua mo rong?
Mot thua ruong hinh thang vuong co day be bang chieu cao va bang mot nua day lon .Thua ruong do duoc mo rong thanh hinh chu nhat. Tinh dien tich hinh thang biet dien dien tich phan mo rong la 5dam2.
Mot hinh thang vuong co day be=3/5 day lon va co chieu cao =23cm .Nguoi ta mo rong hinh thang bang cha keo dai day be cho bang day lon de duoc mot hinh chu nhat, sau khi mo rong dien tich hinh thang tang them 207cm .Tim dien tich hinh thang luc chua mo rong?
Mot hinh thang co dien tich 1053 cm vuong biet rang neu tang day be them 4 cm thi duoc hinh thang moi co dien tich bang 1107 cm vuong tim do dai day be day lon cua hinh thang biet rang hieu hai day bang 14 cm