xi ke minh lam nhu cau gioi lam y lam duoc thi tra loi di con chui nguoi ta chi co do ngu moi chui nguoi khac la do ngu hu do than kinh
huw ko bieets nha
nguyennhuhoa đúng lắm
mot thua ruong hinh thang co chieu cao la 10m hieu cua 2 canh day la 22m.Nguoi ta mo rong thua ruong do thanh hinh chu nhat co chieu daibang canh day lon va chieu rong bang chieu cao .Dien tich duoc mo rong bang 1phan7 dien tich cu .phan dat mo mo rong them ve phia tay phai la 90m vuong .Tinh day lon cua thua ruong cu
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 day lon la 120m va bang 4/3 day be chieu cao bang 2/5 day lon tren thua ruong nguoi ta trong lua cu 100m thu hoach 65kg thoc hoi thua ruong do thu hoach duoc bao nhieu ta thoc
1 thua ruong hinh thang co day lon 63 m , day be 5/7 day lon va bang 9/ 8 chieu cao . Nay do mo rong duong phai cat day lon di mot so met , vi vay thua ruong con lai van la hinh thang co dien tich la 1910 m vuong .hoi da cat day lon di bao nhieu met ?
mot thua ruong hinh thang co day lon 84 m,day be bang 2 phan 3 day lon,chieu cao hon day be 6,4 m.Trung binh cu 100 m vuong thi thu hoach duoc 70 km thoc.hoi so thc thu hoach tren ca thua ruong la bao nhiu?
cam on
1 thua ruong hinh thang co day be la 15m va bang nua day lon. Chieu cao bang trung binh cong 2 day. biet rang cu 2m2 thu duoc 40kg thoc. Tinh so thoc thu duoc cua mieng dat
mot thua ruong hinh thang co day lon la 120,4m day be bang 1/4 day lon, chieu cao 79,6 trung binh cu 100m vuong thu hoach duoc 62kg thoc. hoi thua ruong do co bao nhieu kg thoc
Mot manh dat hinh thang co day be bang 180 m , day lon bang 14 phan 9 day be, chieu cao bang 4 phan 7 day lon . Hoi dien tich manh dat bang bao nhieu met vuong , bao nhieu hec ta
mot manh dat hinh thang co day be la 150m day lon 5phan 3 day be chieu cao bang 2 phan 5 day lon hoi dien tich manh dat bang bao nhieu met vuong bao nhieu hec ta
