Các câu hỏi tương tự
1 hinh thang co tong day be , day lon. , va chieu cao la 36cm , day be kem day lon 2cm , chieu cao kem day be 2cm , tinh dien tich hinh thang
tim 2so , biet rang thuong cua 2 so la 1,75 va hieu cua 2 so = 0,33
1
B=5,76xA+4,24xA
tim gia tri de B nho nhat
2
1 hinh chu nhat co chu vi la 162m . Nguoi ta tang chieu dai moi ben 3m de ra 1 hinh thang can thi dien tich tang 168mvuong
ve hinh va tinh day lon hinh thang
tinh dien tich hinh thang
cho hinh thang ABCD co day AB//CD va AB<CD. E la trung diem cua BC. biet dien tich tam giac ADE=10cm2 tinh dien tich hinh thang ABCD
tinh the tich hinh hop chu nhat .Biet dien tich day bang 12cm vuong va chieu cao la 3cm
mot hinh thang co day lon gap 2 lan day nho duong trung binh 3cm. tinh do dai day lon
Dien tich cua hinh binh hanh co day bang 12,8m,chieu cao bang 3/4day la
1 hinh chu nhat co chieu dai gap 3 lan chieu rong . Neu tang chieu rong them 3 m va giam chieu dai 2 m thi dien tich se tang them 64 m2. Tim kich thuoc cua hinh chu nhat
1 hinh chu nhat va 1 hinh vuong co cung dien tich , canh hinh vuong lon hon chieu rong cua hinh chu nhat 2 m va be hon chieu dai chua hinh chu nhat 3 m . Tim kich thuoc cua moi hinh
tinh dien tich xung quanh cua hinh hop chu nhat co chieu cao la 20 chieu rong 10 chieu dai 25