nguoi ta xep cac hinh lap phuong nho co canh 1cm thanh mot hinh lap phuong lon co dien tich toan phan la216cm2 sau do nguoi ta son tat ca cac mat cua khoi lon do .Hoi co baonhieu hinh lap phuong nho duoc son 3 mat;2mat 1 mat va ko duoc son mat nao
TRA LOI GIUP MINH NHE
mot khuc go hinh hop chu nhat dai 3 dm rong 2,5 dm cao 2 dm duoc son ca 6 mat va dem cat thanh cac khoi hop chu nhat nho dai 3 cm rong 2,5 cm cao 2 cm lam do choi cho tre em hoi :
a)cat duoc bao nhieu khoi hop chu nhat nho do (mach cat ko dang ke)
b) nhung khoi hop chu nhat nho nam o vi tri nao cua khoi go khoi hop lon thi duoc son3 mat 2 mat 1 mat va ko duoc son mat nao? moi loai trenmoi loai tren co bao nhieu khoi nho?
nguoi ta xep cac hlp co canh 1cm thanh 1hlp lon co s toan phan la 96cm2. Sau do nguoi ta son tat ca cac mat cua khoi lon do.Hoi bao nhieu hlp nho chi duoc son 3 mat? 2mat? 1 mat?Va ko duoc son mat nao?
co 27 khoi lap phuong nho bang nhau duoc ghep thanh mot hinh lap phuong lon . nguoi ta son tat ca cac mat cua hinh lap phuong lon do .
a] co.... khoi hinh lap phuong nho duoc son 3 mat .
b]co...khoi lap phuong nho duoc son 2 mat .
c]co .... khoi lap phuong nho duoc sin 1 mat.
d]co ... khoi lap phuong nho khong duoc son mat nao .
GHI CA CACH GIAI NUA NHA . LAM ON , HELP ME
Nguoi ta xep 100HLP nho canh 1cm thanh 1 HLP lon . Hoir neu dem son 4 mat cua HLP lon thi co bn HLP nho khong son mat nao ?
Ai nhanh minh tick cho OK nhe minh can gap lam nho cac ban do
Nguoi ta xep cac hinh lap phuong nho co canh 1cm thanh mot hinh hop chu nhat co chieu dai 15cm,chieu rong 10cm,chieu cao 7cm.Sau do nguoi ta son ca sau mat cua hinh.Hoi co bao nhieu hinh lap phuong nho khong son mat nao
nguoi ta son trang tri ca hai mat ( trong va ngoai ) cua mot cai hop go co dang hinh lap phuong khong co nap tinh ra dien tich da son la 2250cm2 . tinh do dai canh cua cai hop go do
giup minh voi giai ra ho minh nha
nguoi ta xep 960 khoi lap phuong nho co canh 1 cm thanh 1 khoi hop chu nhat dai 12 cm cr 10 cm sau do nguoi ta dem son 6 mat ngoai cua khoi hop chu nhat . hoi co bao nhieu khoi lap phuong nho ko son mat nao
Hay cho biet co tat ca bao nhieu so co 3 chu so ma trong moi so do co mat chu so 0
nho lam cho minh nhe
