cho 1 hinh chu nhat co chieu rong bang 1/3 chieu dai .Neu keo chieu dai them 4dm thi dien tich tang them64dm2.Tim chu vi va dien tich hinh chu
mot hinh chu nhat co chu vi 88m.neu tang chieu rong them 4m thi dien tich tang la140m2.tinh chieu dai,chieu rong cua hinh chu nhat do
mot hinh chu nhat co chieu rong bang 1/ 7 chieu dai .neu tang chieu dai 15cm,chieu rong 105 cm thi duoc hinh vuong .Tinh chu vi va dien tich hinh chu nhat ban dau
mot hinh chu nhat co chu vi la88m.neu tang chieu rong len 4m thi dien tich tang them 140cm2.tinh chieu dai chieu rong
mot hinh chu nhat co chu vi 88m. nêu tang cieu rong them 4m thi dien tich tang them la 140m. tim chieu dai va chieu rong
mot hinh chu nhat co chu vi 36cm neu tang chieu dai 7cm va tang chieu rong 3 cm thi duoc mot hinh vuong tinh dien tich hinh chu nhat do ?
bai 1 . 1 HCN co chieu dai gap 4lan chieu rong , chieu dai hon chieu rong la 12 cm . tinh dien tich hinh chu nhat ?
bai 2 . 1 HCN co chu vi la72 cm / Neu tang chieu rong 5cm thi duoc hinh vuong . Tinh canh hinh vuong ?
cac ban hay giup minh nhe . Day la bai tap cua minh
ai lam nhanh minh tich cho
a hi hi
Mot hinh chu nhat co chu vi la 40cm.Neu tang chieu rong them 4cm va giu nguyen chieu dai thi hinh chu nhat do thanh hinh vuong.Tinh dien tich hinh chu nhat do?
MOT HINH CHU NHAT CO CHIEU DAI GAP 3 LAN CHIEU RONG. NEU THEM VAO CHIEU RONG 16 CM THI HINH CHU NHAT TRO THANH HINH VUONG . TINH DIEN TICH CUA HINH CHU NHAT DO