ai lam nhanh me se cho 2 ** nha ! thanhs!
tong do dai 2 day la
30 x 2 = 60(m)
chiều cao phần tăng thêm hay thửa ruộng hình thang là
35 x 2 :5=14(m)
dien h la
14x60=840(m2)
đáp số 840m2
mot thua ruong hinh thang co trung binh cong hai day la 30,15m. neu tang day lon them 5,6m thi dien tich thua ruong do tang 33,6m . tinh dien tich thua ruong do
mot hua ruong hinh thang co trung binh cong 2 day la 30,15m . Neu tang day lon them 5,6 m thi dien tich thua ruong do tang 33,6m vuong . Tinh dien tich thua ruong do
mot thua ruong hinh thang co dien tich la 361.8 m2. day lon hon day be 13,5 m. hay tinh do dai moi day biet rang neu tang day lon them 5,6m thi dien tich thua ruong tang them 33,6 m2
mot thua ruong hinh thang co trung binh cong 2 day la 50.4 Neu tang day lon them 7.2 m thi dien tich thua ruong se tang len 64.8. tính s cua thua ruong
mot thua ruong hinh thang co trung binh cong hai day la 301,5m. neu tang day lon them 5,6m thi dien tich thua ruong tang them 336m2
a) tinh dien tich thua ruong hinh thang bang don vi do dam2?
b) cu 300m2 thu duoc 22,5 tan thoc . tinh xem tren ca thua ruong thu hoach duoc bao nhieu kg thoc?
mot thua ruo ng hinh thang co trung binh cong hai day la 30,15 m .neu tang day lon them 5,6 m thi dien tich cua thua ruong se tng them 33,6 m2
1thua ruong hinh thang co trung binh cong 2 day la 32 m neu day lon tang 16 m day nho tang 10m thi dien tich thua ruong se tang hon 130m vuong tinh thua ruong do
mot thua ruong hinh thang co trung binh cong hai day la 39m. day lon hon day be 14m. chieu cao bang 1/2 day lon.
a. tinh dien tich thua ruong hinh thang
b. neu mo rong day lon them 4m thi dien tich thua ruong tang them bao nhieu metvuong
1 thua ruong hinh thang co day lon 52 m day be bang 75% day lon neu tang day be them 10m tang day lon them 6m thi dien tich thua ruong se tang them 80m vuong tinh dien tich thua ruong