Các câu hỏi tương tự
1 khoi go hinh lap phuong co canh 2 m nguoi tho moc da xe go va lay di 1 phan khoi go hinh hop chu nhat co chieu dai bang canh cua khoi go ban dau va chieu rong bang chieu cao bang 0,5 m tinh the tich khoi go con lai
go hinh hop chu nhat co chieu dai bang 8dm chieu rong bang 3dm chieu cao bang 2dm o giua mot matt cua khoi go nguoi ta khoet mot lo nho hinh lap phuong canh 1cm tinh dien tich toan phan cua khoi go sau khi khoet
Mot khoi go hinh hop chu nhat co dien tich toan phan bang dien tich toan phan cua hinh lap phuong co canh la6dm.chieu dai khoi go la12dm,chieu rong la6dm.tinh chiêu cao cua khoi go do
Mot khoi go hinh hop chu nhat co dien tich toan phan = dien tich hinh lap phuong co canh 6dm. Biet khuc go co chieu dai 12dm chieu rong 6dm .Tinh chieu cao khuc go
mot hinh hop chu nhat co chieu dai 2,3m chieu rong 0,8m chieu cao 0,6 m va 1 hinh lap phuong co canh bang trung binh cong cua cd chieu rong chieu cao cua hinh hop chu nhat do
a, tinh the tich moi hinh tren
b, hinh nao co the tich lon hon va lon hon bao nhiru dm khoi
thung bia cung danh hinh hop chu nhat co chieu dai 8cn,chieu rong 5cm,chieu cao 6cm.Nguoi ta dat mot khoi go hinh lap phuong vao trong hop do.Ti le the tich giua hinh lap phuong va hinh hop chu nhat la 1:10.Tinh:
a/ The tich thung bia hinh hop chu nhat
b/ The tich khoi go lap phuong
giup minh nha minh can loi giai gap.
mot khoi go hinh hop chu nhat co chieu dai 14 cm , chieu rong 10 cm , chieu cao 6 cm duoc son 6 mat . nguoi ta cua khuc go thanh 105 khoi lap phuong co canh 2 cm . Vay co :
a) ......khoi lap phuong duoc son 3 mat
b ) ....... khoi lap phuong duoc son 2 mat
c)......khoi lap phuong duoc son 1 mat
d)......khoi lap phuong khong duoc son mat nao ?
xep mot khoi lap phuong nho canh 1cm thanh mot khoi dang hinh hop chu nhat lon co chieu dai 6cm ; chieu rong 4cm va chieu cao 3cm.
a)Tinh the tich hinh hop chu nhat xep duoc.
b)Tinh so khoi lap phuong nho dung de xep
mot hinh lap phuong co chieu dai lka 2,2 m chieu rong la 0,8 chieu cao la 0,6 va mot hinh lap phuong co canh bang trung binh cong cua chieu dai chieu rong chieu cao cua hinh chu nhat do
tinh the tich moi hinh tren
hinh nao co the tich lon hon va lon hon bao nhieu de xi met khoi