mot vuon truong hinh chu nhat co chieu dai bang 3/2 chieu rong . neu tang moi chieu 2m thi dien tich tang 64m2 tinh dien tich vuon truong
Mot cai san hinh chu nhat co chieu rong bang 1/3 chieu dai . Neu tang chieu dai 5m bot chieu rong 5m thi dien tich san giam la 275m2 . Tinh dien tich cai san do ?
1 khu dat hinh chu nhat co chieu rong bang 2/3 chieu dai .neu cat bot chieu dai di 5 m va tang chieu rong 5 m thi dien tich tang them 35m2.tinh dien tich khu dat do
Tinh dien tich hinh chu nhat co chieu rong bang 2/3 chieu dai. Neu tang chieu dai them 2/3 thi dien tich hinh chu nhat do tang them 2012 cm2
một hing chu nhat hinh chu nhat co chieu dai gap ruoi chieu rong neu mo rong hinh chu nhat do theo chie dai tang 1 mva chieu rong tang1m thi dien tich tang them 25% tinh chu vi hinh chu nhat ban dau
vuon hinh chu nhat co chu vi la 56m. neu tang chieu rong them 2m va tang chieu dai them 5m thi chieu rong bang 2 phan 3 chieu dai .tinh dien tich vuon ban dau .
mot hinh chu nhat co chu vi la 90 neu tang chieu rong 5 m va giam chieu dai 5m thi se duoc hinh chu nhat co dien tich bang voi dien tich ban dau
1 hình chu nhat có chiều rộng bang 1phan 3 chieu dai neu bot chieu dai 72 cm bot chieu rong 8 cm thi duoc 1 hinh chu nhat co chieu dai gap ruoi chieu rong va chu vi la 160 cm .Tinh dien tich hinh chu nhat ban dau
cho hinh chu nhat co dien tich la 300cm2biet neu tang chieu rong them 3 cm thi dien tich hinh chu nhat tang them 75cm2tim chieu dai va chieu rong hinh chu nhat do