1 hcn cocd gap 3/2 cr keo dai cd them 1/6 cd va keo dai cr them 1/4 cr thi duoc 1 hcn co s moi hon s cu la 132m tinh s hcn ban dau
tinh chu vi hcn biet cd =2/1 cr va co s la 128 cm vuong
Cho hcn ABCD co CD 18cm CR 12cm .biet AM=MD DN = NC . Tinh S tam giac BMN.
mot hinh chu nhat co chu vi la 140m tinh dien tich hcn biet neu keo cr them 1/3 va giu nguyen cd thi thanh hv
cho 1 HCN co chu vi la 5m, biet CD gap ruoi CR vay S cua HCN do la bao nhiu xang ti met vuong? can gap help me
1 thua ruong hcn co cd hon cr 8 .Nếu tăng co cd va cr len 4 thi s tăng 248 , tinh s thua ruong
1 HCN co NCV la 0,15 km va CR bang 2/3 CD . tinh DT san truong voi dv do la m2 , ha
mot HCN co chu vi la 320 m CD bang 7/ 2 CR tinh DT HCN voi don vi la ha biet trung binh cu 100 m2 thu hoach duoc 75 kg thoc hoi tren ca thua ruong thu hoach duoc bao nhieu tan thoc?
1 hcn co cd 2 m cd hon cr 3/5 m tinh cv hcn do
