Các câu hỏi tương tự
mot hinh chu nhat co chu vi 120 m. neu tang chieu rong cua hinh chu nhat do them 10% va giam chieu dai di 10%thi ta duoc 1 hinh vuong .hoi:
a, chieu rong sau khi tang bang bao nhieu phan tram chieu rong ban dau
chieu dai sau khi giam bang bao nhieu phan tram chieu dai ban dau
b, tinh dien tich hinh chu nhat do.
Mot hinh chu nhat co chieu dai la 16m , chieu rong la 10m. Neu tang chieu dai them 4m thi dien tich cua hinh chu nhat tang bao nhieu phan tram ?
mot hinh chu nhat co chieu dai la 75m. chieu rong 6m
ti so phan tram cua chieu dai chieu rong
ti so pham tram cua chieu rong chieu dai
1 Hinh hop chu nhat co chieu dai 1m 5 cm chieu rong bang 80 phan tram chieu dai chieu cao bang 75 phan tram chieu rong hoi doen tich toan phan cua hinh hop do a bao nhieu met vuong
2 hinh hop chu nhatvco chieu dai 25 cm chieu cao 18 cm chu vi mat day 80 cm tinh dien tich toan phan cua hin do
mot hinh chu nhat co chieu dai la 16m chieu rong la10m neu chieudai tang them 4m thi dien tich cua hinh chu nhat se tang them bao nhieu phan tram
mot hinh chu nhat co chieu dai 16m, chieu rong 10m. neu chieu dai tang them 4m thi dien tich cua hinh chu nhat se tang len bao nhieu phan tram
Help! Mot hinh chu nhat co chieu dai 16m,chieu rong 10m.Neu chieu dai tang them 4m thi dien tich cua hinh chu nhat se tang len bao nhieu phan tram?
Help! Mot hinh chu nhat co chieu dai 16m,chieu rong 10m.Neu chieu dai tang them 4m thi dien tich cua hinh chu nhat se tang len bao nhieu phan tram?
mot hinh chu nhat co chieu dai 16 m , chieu rong 10m . neu chieu dai tang them 4m thi dien tich cua hinh chu nhat se duoc tang len bao nhieu phan tram