Đáy bé là:
12 x \(\frac{3}{4}\)=9 cm
Chiều cao là
12 : 100 x 50 = 6 cm
Diện tích là:
(12 + 9) x 6 = 126 cm2
đáy bé là:
12*3/4=9cm
50%=1/2
chiều cao là:
12*1/2=6cm
diện tích là:
(12+9)*6:2==63cm2
1 hinh thang co tong do dai 2 day la 42 cm,chieu cao bang day be , day be bang 3 phan 4 day lon . tinh dien tich hinh thang
mong cac ban hay giai cho minh ma hay co loi giai phep tinh va dap so nhe ban nao giup minh thi minh thich ca
1 hinh thang co day lon =30 m. day be 20m . chieu cao = 1/2 day be . 1hinh tam giac co day la 40m va dien tich = dien tich hinh thang . tinh chieu cao cua tam giac do
day la 1 bai nhe cac ban nho giai cho mih day
BAN NAO GIAI DUOC BAI NAY GOI LA THANH
HINH THANG co daynho1.2dam day lon=135%day nho chieu cao=85%day nho.tinh Dt
ban giai ra dum minh
mot manh dat hinh thang co day lon la 150 m va day be = 2 /3 day lon , chieu cao bang 50% day be .tinh dien tich manh dat hinh thang do ?
Mot hinh thang co hieu hai day la 12cm. Day be bang3/5 day lon. Day lon bang 3/2 chieu cao. Tinh dien tich hinh thang
1. Tinh dien tich hinh thang biet:
a, Day lon la 2dm 3cm, day be la 1dm 5cm, chieu cao la 2/3m
b, Day lon la 3/4m, day be la 2/3m, chieu cao la 4/5m
giai ro rang nha cac ban
tinh sien tich hinh thang co day lon la 24cm ,day be bang 1/3 day lon , chieu cao lon hon day be 4 cm
bai 1 : 1 manh dat hinh thang co day lon 2 , 8 dm day be 1, 6 dm chieu cao 0 , 8 dm
a , tinh dien tich tam bia do
b , nguoi ta can cat 1/4 dien tich . tinh dien tich tam bia con lai
bai 2 : 1 thua ruong hinh thang co day be 26m day lon hon day be 8m day be hon chieu cao 6m trung binh cu 100m2 thu duoc 70,5 kg thoc . hoi ruong do thu duoc tat ca ? ta thoc
bai 3 : hinh chu nhat ABC co chieu dai DC = 27 cm chieu rong AD = 20,4 m E la 1 diem tren AB . tinh dien tich hinh tam giac EDC
ban nao giai ho minh thi giai han ro ra nha
Bai 1 :Mot thua ruong hinh thangco trung binh cong hai day la 301,5 m . Neu tang day lon them 5,6 m thi dien tich thua ruong tang them 336 m2
a}tinh dien tich thua ruong hinh thang bang don vi dam2
b}Cu 300 m2 thu duoc 22,5 tan thoc . Tinh xem tren ca thua ruong thu hoach duoc bao nhieu kilogam thoc ?
Bai 2 : Mot hinh thang co dien tich 3780 m2 va chieu cao 45 m . Day be bang 3/5 day lon . Tinh moi day cua hinh thang ?
Bai 3:Mot khu ruong hinh thang co chieu cao 50 m . Day lon 145 m ; day be 95 m . Moi met vuong thu hoach duoc 1,74 kg thoc . Hoi nguoi ta thu hoach duoc bao nhieu tan thoc tren thua ruong ay ?
Bai 4: Mot hinh thang co chieu cao 34 dm . Day lon gap doi day be . Dien tich hinh thang bang dien tich 1 hinh chu nhat chieu dai 68 dm ; chieu rong 30 dm . Tinh do daii moi day hinh thang ?
Bai 5 : Mot hinh thang co day lon 60 cm ; day be 38 cm . Neu keo dai day lon them 20 cm va day be 12 cm ve cung mot phia thi dien tich se tang them 512 cm2 . Tinh dien tich hinh thang luc dau ?
Bai 6:Mot hinh thang vuong co dien tich 85 dm2 va hieu 2 day la 3 dm . Neu keo dai day lon them 4 dm nua thi dien tich tang them 20 dm2 . Tinh do dai moi day cua hinh thang vuong do ?
giai han ra nha minh cho moi bai 100 mk nha tong cong se la 600 mk do nha ! ai giai xong ket ban luon voi minh nha ! thanks!
