nua chu vi la :36:2=18(m)
chieu dai la : 18:(2+1) x2=12(m)
chieu rong la : 18-12=6(m)
the h cai ho la
12x6x2=144(m3)
dap so 144m3
nua chu vi la :36:2=18(m)
chieu dai la : 18:(2+1) x2=12(m)
chieu rong la : 18-12=6(m)
the h cai ho la
12x6x2=144(m3)
dap so 144m3
Biet mot khoi dat nang 1,75 tan . Hoi muon dao mot ho hinh hop chu nhat sau 3m , chieu dai gap doi chieu ronng va chu vi mieng ho bang 35m thi can dao bao nhieu tan dat .
LAM HO MINH NHA
nguoi ta đao mot cai ao co dang hinh hop chu nhat co chieu sau 1.5m, chieu dai gap đoi chieu rong. Dien tich xung quanh 108 m vuông . hoi toan bo so dat dat dao ao la bao nhieu met khôi
mot cai ho hinh hop chu nhat co chieu dai gap 3 lan chieu rong , chu vi day bang 9,6 m , chieu cao 1,8 , nguoi ta chua nuoc duoc 2/3 ho . hoi trong ho co bao nhieu lit nuoc
nguoi ta dao 1 cai ao dang hinh hop chu nhat co chieu cao 1,5m.chieu dai gap doi chieu rong.dien tich xung quanh 108m vuong.hoi toan bo so dat dao ao do la bao nhieu met khoi
nguoi ta dao mot cai gieng hinh tru sau 6 m co chu vi day la 6,28m phan dat lay len tu gieng nguoi ta dem dap vao mot cai san hinh chu nhat co chieu dai 8m chieu rong 5m hoi san duoc dap them 1 lop day bao nhieu met
nguoi ta lam mot cai hop dang hinh hop chu nhat bang bia .biet rang hop do co chieu dai 5dm ,chieu rong 3dm va chieu cao 2dm .hoi co xep duoc bao nhieu hinh lap phuong 1de -xi-met khoi de day cai hop do ?
bai 1mot khoi be tong dang hinh hop chu nhat co chieu dai 0,8m chieu rong 0,6m chieu cao 0,5m biet 1dm khoi be tong do can nang 2,5kg hoi khoi be tong do can nang bao nhieu kg
mot thua ruong hinh chu nhat co chu vi bang chu vi hinh vuong canh 56m chieu rong bang 3/4 chieu dai nguoi ta trong lua o thua ruong do dat nang suat 5tan/ha hoi tren thua ruong do nguoi ta thu hoach duoc bao nhieu tan lua
mot cai san hinh chu nhat co chu vi 50m , chieu dai hon chieu rong 10m. nguoi ta dao mot cai ao hinh tam giac co canh day 5,2m va chieu cao 4,9m. tinh dien tich mieng dat con lai.
mn oi giup tui voi tui can rat gap
giup tui voi moi nguoi
Bài 1/ Mot tam bia hinh chu nhat co chieu dai 10dm va gap doi chieu rong. Nguoi ta cat tam bia do thanh nhung hinh vuong co canh 10 cm. Hoi nguoi ta cat duoc bao nhieu hinh vuong nhu the tu tam bia do?
Bai 2/ Mot mieng bia hinh chu nhat co chieu rong 11/2 cm va bằng 1/2 chieu dai. Tinh chu vi mieng bia do?