Mot thua ruong hinh thang co dien tich la 361, m2 day lon hon day nho 13,5 m . Hay tinh do dai hai day biet rang neu tang day lon them 5,6 m thi dien tich cua thua ruong se tang them 33,6 m2.
Mot thua ruong hingthang vuong co canh ben vuong goc voi 2 day dai 30,5 m ; day lon 120,4 m ; day be 79,6 m .
A , Tinh dien tich thua ruong bang dam2 ?
B / Trung binh 100 dam2 thu dc 65,2 kg thoc . Hoi tren ca thu ruong thu dc bao nhieu kg rau ?
mot thua ruong hinh thang co duong cao bang 20,5 m , day be bang 18,3 m , day lon 22,5 m. giua thua vuon nguoi ta dao 1 cai gieng hinh tron co ban kinh bang 1,3 m . tinh dien tich dat con lai de trong cay
1 thua ruong hinh thang co dien tich 6000m2 thu hoach duoc 3900kg thoc?
a, hoi trung binh 1a thu hoach duoc bao nhieu kg lua?
1 thua ruong hinh thang co dien tich 6000m2 thu hoach duoc 3900kg thoc ?
a, hoi trung binh 1a thu hoach duoc bao nhieu kg lua ?
Mot hinh thang co dien tich 110 cm2 , hieu do dai hai canh day bang 6 cm. Neu tang day lon them 3 cm thi dien tich hinh thang se tang them 15 cm2 . Hoi :
a) Chieu cao cua hinh thang.
b) do dai mooi day hinh thang.
mot thua ruong hinh thang co day lon 40cm , day be bang 3/5 day lon . Biet dien tich hinh thang bang
khong phay hai tram bay hai met vuong. tinh duong cao cua hinh thang lon.
mot thua ruong hinh thang co duong cao bang 20,5 m , day be bang 18,3 m , day ln 22,5 m . giua thua vuon ta dao 1 cai gieng hinh tron co ban kinh bang 1,3 m . tinh dien tich dat con lai de de trong cay
Cho hinh thang co duong cao 10 cm . Hieu hai day la 22 cm . Keo dai day nho bang day lon de thanh hinh chu nhat co chieu dai bang day lon, chieu rong bang chieu cao hinh thang . Dien tich duoc mo rong them bang 1/7 dien tich hinh thang cu.Phan mo rong ve phia ben phai co dien tich 90cm vuong .Hay tinh day lon cua hinh thang ban dau