Các câu hỏi tương tự
mot thua dat hinh tam giac co day la 25 m neu keo dai day them 5 m thi dien tich se tang them 50 m2 tinh dien tich thua ruong ban dau
Mot thua dat hinh tam giac co day la 24,5m.Neu keo dai day them 5m thi dien tich se tang them 40m vuong.Tinh dien tich thua dat ban dau
Mot thua ruong hinh tam giac co day la 25m. Keo dai day them 5m thi dien tich tang them 50m2. Tinh dien tich manh dat khi chua mo rong. ( can ve hinh)
mot thua dat hinh tam giac co chieu cao la 10 m . hoi neu keo dai day them 4m thi dien tich se tang them bao nhieu m vuong
mot thua dat hing tam giac co day la 25 , neu keo dai day them 5 m thi dien tich se tang them 50m vuong tinh dien tich thua dat khi chua mo rong
mot thua dat hinh tam giacco chieu cao la 10m.Hoi neu keo dai day them 4m thi dien tich se tang them la bao nhieu met vong
Bài 1:1 mieng dat hinh tam giac co hieu giua day va chieu cao la 10,5m. tinh dien tich mieng dat do, biet rang neu tang canh day them 3,6m thi dien tich mieng dat se tang them 79,2m2
Bài 2:1 mieng vuon hinh tam giac co đỉnh A va day BC dai 45m. neu keo dai canh day BC them 1 doan CD dai 15m thi dien tich se tang them 225m2.
,tinh dien tich mieng vuon do bang đơn vị ha
mot manh dat hinh chu nhat co do dai day la 35m.neu keo dai canh day them 5m thi dien tich se tang them 41m.tinh dien tich dam dat luc chua keo dai canh day
mot hinh tam giac co day la 35 dm , neu keo dai canh day them 2.7 m thi dien tich tam giac tang 5.265 m2 dien tich hinh tam giac do la