day lon cua hinh do la
45,5 x 2 = 91 (m)
dien h thua ruong do la
\(\frac{\left(45,5+91\right).50,4}{2}\)= 3439 ,8 (m2)
Đ/S : 3439,8 m2
giup toi nhe ai lam dung minh cho 5
mot thua ruong hinh thang co dien tich 4200m2 va co day lon gap 3 lan day be . neu giam day be 15 m thi dien tich thua ruong se bi giam 450m2 . tinh do dai moi day cua thua ruong hinh thang tren
Mot thua ruong hinh thang co day nho 30 m vuong va bang 2 / 3 day Lon. Chieu cao bang 4/5 day Lon. Tinh dien rich thua ruong do bang m vuong bang ha
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 thua ruong hinh thang co dien tich bang 361,8m2 , day lon hon day nho 13,5m . Tinh do dai moi day bietneu tang day lon 5,6m thi dien tich thua ruong tang then 33,56m2
mot manh ruong hinh thang co day lon 24,8 m , day nho bang nua day lon va kem chieu cao 12,5 dm . tinh dien tich manh ruong do
mot thua ruong hinh thang co dien tich 1447, 2 m2 , day lon dai hon day nho 27 m . Hay tinh do dai moi day , biet rang neu day lon them 11,2 m thi S thua ruong tang them 134,4 m2
Mot thua ruong hinh thang co do ai day nho la 15 m,day lon bang 160 % day nho.Chieu cao bang hieu giua day lon va day nho .Hoi:
a)Dien tich cua thua ruong do bang bao nhieu met vuong?
b)Khoi luong thoc thu duoc tren thua ruong do la bao nhieu ta,biet rang cu 10m2 thi thu duoc 12kg thoc ?
mot thua ruong hinh thang co day lon48m va day lon gap doi day be chieu caobang so do trung binh cong hai day .tinh dien trich thua ruong do
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.
