mot thua ruong hinh thang co day lon la 150 m , day be bang 80% day lon , chieu cao bang 2/3 day

a) ting dien tich hinh thang 

b) tren thua ruong do nguoi ta trong lua , trung binh cu moi cu 100m vuong thu hoach duoc 62,5 kg thoc . hoi tren ca thua ruong do nguoi ta trong thu hoach duoc bao nhieu tan thoc

mot thua ruong hinh thang co day lon dai 52m, day be bang 45% day lon. chieu cao bang trung binh cong cua hai day.

a. tinh dien tich cua thua ruong do.

b. nguoi ta cay lua tren thua ruong, trung binh cu 100 m vuong thu hoach duoc 70 kg thoc. hoi ca thua ruong thu hoach duoc bao nhieu ta thoc.

mot thua ruong hinh thang co day lon 150 m, day be bang 4/5 day lon,chieu caobang 2/3 day be.tren thua ruong do nguoi ta trong lua ,trung binh cu 100 m2 thu hoach dc 62,5 kg thoc. hoi tren ca thua ruong do nguoi ta thu hoach dc bao nhieu tan thoc

mot thua ruong hinh thang co day ln 150 m , day be bang 4/5 day lon chieu cao bang 2/3 day be . tren hua ruong do nguoi ta trong lua , trung binh cu 100 m2 thu hoach 62,5 kg thoc . tren ca thua ruong do nguoi ta thu hoach bao nhieu tan thoc

mot thua ruong hinh thang co day lon la 20 m , day be bang 4/5 day lon va hon chieu cao la 10 m .trung binh cu 100 m vuong thu hoach duoc 60 kg thoc . hoi tren thua ruong do nguoi ta thu hoach duoc bao nhieu ta thoc ?

Mot thua ruong hinh thang co day lon 160 m,day be bang 75% day lon, chieu cao 100 m. Trung binh cu 100 m2 thu hoach duoc 65 kg thoc. Tinh so tan thoc thu hoach duoc tren thua ruong do.

mot thua ruong hinh thang co day lon la 20 m , day be bang 18m   chieu cao la 4 5 day be .trung binh cu 100 m vuong thu hoach duoc 60 kg thoc . hoi tren thua ruong do nguoi ta thu hoach duoc bao nhieu ta thoc

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

Mot thua ruong hinh thang co day be bang 100 m,day lon bang 5/4 day be,chieu cao kem day be 20 m.Nguoi ta trong lua tren thua ruong do,trung binh cu 50 m² thu hoach duoc 37,5kg thoc.Hoi tren ca thua ruong thu hoach duoc bao nhieu ta thoc?