day lon la :
150x 5/3 = 250 ( m )
chieu cao la :
250 x 2/5 = 100 ( m )
dien h manh dat la :
( 150 + 250 ) x 100 : 2 = 20000 ( m2 )
dap so : 20000 m2
một mảnh đất hình thang co day be la 150m, day lon bang day be 5/3 day be., chieu cao bang 2/5 day lon. Hoi dien tich manh dat bang bao nhieu met vuong, bao nhieu hec-ta?
mot manh dat hinh thang co day be la 150m day lon 5phan 3 day be chieu cao bang 2 phan 5 day lon hoi dien tich manh dat bang bao nhieu met vuong bao nhieu hec ta
mot manh dat hinh thang co day be la 150m day lon bang 5/3 day be chieu cao bang 2/5 day lon.Hoi dien tich manh dat bang bao nhieu met vuong bao nhieu hec ta
Mot manh dat hinh thang co day be bang 180 m , day lon bang 14 phan 9 day be, chieu cao bang 4 phan 7 day lon . Hoi dien tich manh dat bang bao nhieu met vuong , bao nhieu hec ta
mot manh dat hinh thang co day be bang 180 m day lon bang 14/9 day be chieu cao bang 4/7 day lon hoi dien tich manh dat bang bao nhieu met vuong hec ta
1.Mot manh dat hinh thang co day lon 200m ,day be bang 3phan 4 day lon.Chieu cao bang 2phan 5 day lon .Hoi dien tich manh dat do bang bao nhieu met vuong ?Bao nhieu het ta?
2.Mot nguoi di xe may voi van toc 44km/gio trong 1gio 15 phut.Hoi nguoi do di duoc quang duong dai bao nhieu km?
Mot manh dat hinh thang co day lon la 360m day nho bang 2/3 day lon , chieu cao bang tung binh cong hai day Hoi dien tich manh dat bang bao nhieu met vuong , bao nhieu hec - ta
GIUP MINH VOI MINH DANG CAN GAP
Mot manh dat hinh thang co day be 180m, day lon bang 14/9 day be chieu cao bang 4/7 day lon . Hoi dien tich manh dat bang bao nhieu mvuong bao nhieu ha
mot manh vuon hinh thang co day be bang 90m day lon bang 5/3 day be va chieu cao bang 3/4 day lon
a tinh dien tich manh vuon hinh thang
b neu tang day lon them 2,5m thi dien tich phan tang them cua manh vuon do la bao nhieu met vuong
