một thửa ruộng hình thang 36 m là nói về cái gì j vậy
Khong phai la 36 ma la 56 va noi ve tong
mot thua ruong hinh thang co dien tich 4200m2 , day lon hon day be 4m . tinh do dai moi day , biet rang neu day be tang them 25 m thi dien tich thua ruong se tang them 750 m 2
mot thua ruong hinh thang co day lon 52m day be bang 75 % day lon , neu tang day be tthem 10m tang day lon 6m thi dien tich thua ruong se tang them 80 met vuong . tinh dien tich thua ruong do
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
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
Cho thua ruong hinh thang co trung binh cong hai day la 30 m neu tang day lon them 5 m thi dien tich thua ruong tang them 35 m2 , Tinh dien tich thua ruong do
1 thua ruong hinh thang co day lon 52m 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 vuông tinh dien tich thua ruong
mot thua ruong hinh tam giac co dien tich 694,4m2.neu mo rong day thua ruong them 4m thi dien tich thua ruong tang them 49,6m2.tinh day cua thua ruong do ? giup minh voi
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 chu nhat co chieu dai hon chieu rong la 8 m .Neu tang ca chieu dai chieu rong moi chieu them 4 m thi dien tich thua ruong se tang them 248 m2 tinh dien tich thua ruong ay
