Vẽ sơ đồ: Chiều dài 5 phần, chiều rộng 1 phần, hiệu là 24
=> Chiều dài là:
24 : ( 5 - 1 ) x 5 = 30 (m)
Chiều rộng là:
30 - 24 = 6 (m)
Diện tích là:
6 x 30 = 180 (m2)
Đổi: 180m2 = 18dam2
Số lúa thu được là:
18 x 7,5 = 135 (tạ)
Đ/s:..
mot thua ruong hinh chu nhat co chieu rong bang 3\7 chieu dai va rong kem chieu dai 360m
a, tinh chu vi va dien tich cua thua ruong hinh chu nhat do .
b,Biet rang cu 1m2 thua ruong nguoi ta thu hoach duoc 7kg thoc. Hoi tren thua ruong do,nguoi ta thu hoach duoc bao nhieu ta thoc?
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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 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 120m, chieu rong bang 2 phan 5 chieu dai.
a. tinh dien tich thua ruong.
b. tren tha ruong nguoi ta trong lua, biet rang cu 100m vuong thi thu hoach duoc 60kg. hoi nguoi ta thu hoach duoc tat ca bao nhieu tan thoc tren thua ruong do.
mot thua ruong hinh chu nhat co chieu dai la 70m,chieu rong kem chieu dai 25m
a) tinh chu vi va dien tich thua ruong do
b)biet rang cu 10 m2 thu hoach duoc 40kg thoc.Hoi tren ca thua ruong do thu hoach duoc bao nhieu kg thoc ?
mot thua ruong trong lua hinh chu nhat co chieu dai 120m, chieu rong bang 2/5 chieu dai. biet rang tren thua ruong do, cu 100m2 thu hoach duoc 60kg thoc. hoi nguoi ta thu hoach duoc tat ca bao nhieu kg thoc tren thua ruong do?
mot thua ruong hinh chu nhat co chieu dai la 70m,chieu rong kem chieu dai 25m
a) tinh chu vi va dien tich thua ruong do
b)biet rang cu 10m2 thu hoach duoc 40kg thoc.Hoi tren ca thua ruong do thu hoach duoc bao nhieu kg thoc ?
nhanh nha cac ban mik can gap
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 dai bang 35,5m, chieu rong bang 2/5 chieu dai.
a) Tinh dien tich thua ruong do.
b) Biet rang, cu 10m2 nguoi ta thu hoach duoc 5 kg thoc. Hoi tren ca thua ruong nguoi ta thu hoach duoc bao nhieu kg thoc?
