tinh dien tich hinh thang co tong do dai 2 day bang 82.5m biet 40% day lon bang 60% day be day be kem chieu cao 2m

mot manh dat hinh thang co day lon dai 250m,day be kem day lon 36m va chieu cao co do dai bang trung binh cong hai day .tinh dien tich cua manh dat do?

Cho hinh thang co do dai day lon la 120 cm, biet day be bang 2/3 day lon. Chieu cao kem day be 5 cm.Tinh dien tich hinh thang do.

mot manh dat hinh thang co day lon dai 250 m ,day be kem day lon 36 m va chieu cao co do dai bang trung binh ccong cua hai day . tinh dien tich manh dat do 

mot dam ruong hinh thang co dien tich 1155m2 va co day be kem day lon 33m nguoi ta keo dai day be them 20m va keo dai day lon them 5m ve cung mot phia de duoc hinh thang moi dien tich hinh thang moi nay bang dien tich cua mot hinh chu nhat co chieu rong bang 30m va chieu dai 51m hay tinh day be day lon cua hinh thang ban dau

Hinh thang co tong do dai 2 day = 14,5 dm, day lon gap gioi day be chieu cao kem day be 2,8 cm . Tinh dien tich hinh thang.

hinh thang co tong do dai 2 day = 25 cm ; day lon hon day be 1,2 cm ; chieu cao kem  day be 1,4 cm . Tinh dien tich hinh thang

tinh dien tich hinh thang co tong do dai cua 2 day bang20,4m;biet 2/3 day lon bang 75% day be,day lon hon chieu cao 0,4m?

tinh dien tich hinh thang co day lon bang 50dm va bang 80 % chieu cao , day be kem day lon 12 dm