mot thua ruong hinh chu nhat co chieu dai 80 c,m ,chieu rong bang 1/2 chieu dai .

a]tinh dien tich thua ruong do .

b]biet rang ,cu 100 m2 thu hoach duoc 50 kg thoc . hoi tren ca thua ruong do nguoi ta thu hoach duoc bao nhieu ta thoc?

mot thua ruong hinh chu nhat co chieu rong bang canh cua mot thúa ruong hing vuong chu vi 0,2 km va co chieu dai gap ruoi chiue rong hoi a dien tich thua ruong do bao nhieu met vuong b cu 50 m2 thu hoach duoc 25 kg thoc thi ca thua ruong thu hoach duoc bao nhieu kg thoc

mot thua ruong hcn co chieu dai 150 m chieu rong bang 2/3 chieu dai trung binh cu 100 m2 thu hoach duoc 60 kg thoc hoi tren ca thua ruong do nguoi ta thu hoach duoc bao nhieu kg tan thoc

mot thua ruong hinh chu nhat co chieu dai 80 m , chieu rong 112,5 m . nguoi ta trong thoc tren thua ruong , cu 100 m2 thua hoach duoc 100 kg thoc . hoi cach dong do thu hoach duoc bao nhieu ta thoc ?

mot thua ruong hinh chu nhat co chieu rong 600m,chieu dai gap 3 lan chieu rong

a] HOI dien tich thua ruong do duoc bao nhieu hec ta  

b] nguoi ta cay lua tren thua ruong , biet rang cu 100 met vuong thu hoach duoc 62 kg thoc . hoi tren ca thua ruong thu hoach duoc bao nhieu tan thoc 

mot thua ruong hinh chu nhat co chieu dai 80 m chieu rong bang 1/2 chieu dai a tinh dien tich thua ruong do 

b biet rang cu 100m vuong thu hoach duoc 50 kg thoc hoai tren ca thua ruong do nguoi ta thu hoach duoc bao nhieu ta thoc

mot thua ruong hinh chu nhat co chu vi la 1100m chieu rong bang 4/7 chieu dai hoi ca thua ruong nay thu hoach duoc bao nhieu tan thoc [biet rang tren thua ruong do trung binh cu 100 m2 thu hoach duoc 6 kg thoc ?

mot thua ruong hinh chu nhat co chieu rong 60m, chieu dai bang 5/3 chieu rong

a, tinh dien tich thua ruong do

b, biet rang,trung binh cu 50 m vuong thu hoach duoc 30 kg thoc . hoi tren ca thua ruong thu hoach duoc bao nhieu ta thoc

mot thua ruong hinh chu nhat co chieu rong 600m,chieu dai gap 3 lan chieu rong

a] HOI dien tich thua ruong do duoc bao nhieu hec ta  

b] nguoi ta cay lua tren thua ruong , biet rang cu 100 met vuong thu hoach duoc 62 kg thoc . hoi tren ca thua ruong thu hoach duoc bao nhieu tan thoc