1 don vi bo doi co khong qua 100 chien si . Biet khi sep hang 3,4,5 deu vua du khi khong thua khong thieu . Hoi don vi bo doi do co bao nhieu chien si
mot hinh chu nhat co chieu dai hon chieu rong 320m chieu rong bang 1/5 chieu dai .
a) tinh chu vi va dien tich hinh chu nhat do .
b)phai bot chieu dai va tang chieu rong them bao nhieu met de hinh chu nhat tro thanh hinh vuong ma chu vi khong thay doi
lam nhanh cho minh nhe
Nguoi ta lat gach hoa hinh vuong co canh 30cm tren mot nen nha co chieu dai 45m va chieu rong 5m. Hoi nguoi ta phai lat tren nen nha do tat ca bao nhieu vien gach? (Mach vua khong dang ke)
mot hinh chu nhat co chieu dai hon chieu rong 320m chieu rong bang 1/5 chieu dai.
a) tinh chu vi va dien tich hinh chu nhat do.
b) phai bot chieu dai va tang chieu rong them bao nhieu met de hinh chu nhat tro thanh hinh vuong ma chu vi khong thay doi
2.
mot thua ruong hinh chu nhat co chu vi la 360m , chieu dai . tinh dien tich thua ruong .
bai 7 : 1 nen nha hinh chu nhat co tong do dai hai canh lien tiep la 11 m, chieu rong kem chieu dai 3 m . Hoi
a)tinh dien tich nen nha
b) nguoi ta lat bang gach men hinh vuong canh la 40 cm. Hoi phai dung bao nhieu vien gach de lat kin nen nha ( coi mach vua la khong dang ke)
Mot hinh chu nhat co chieu rong la 142m vachieu dai gap 3 lan chieu rong . nguoi ta du dinh dong coc de rao xung quanh vuon , coc no cach coc kia 8 dm . Hoi can phai co bao nhieu coc de rao du manh dat do ?
lat minh lam cac chi can noi dung hoac khong
Co 9con pokemon ,them vao 12con pokemon va luc nay pokemon luc dau kem pokemon luc sau so lan?
23569 phan 16835 co phai phan so toi gian khong
Cai gi tai phai khong cham vao duoc ma tay trai cham vao duoc ?