Các câu hỏi tương tự
moi hinh thoi co hieu do dai hai duong cheo la 51/5 m ; ti so cua do dai duong cheo be va duong cheo lon la 2/5. hoi hinh thoi do co dien tich la bao nhieu dm2
'mot hinh thoi co hieu do dai 2 duong cheo la 10 va 1/5 . ti so cua duong cheo lon va duong cheo be la 2/5 . tinh dien tich hinh thoi do .
bai4:an mua het 2/3 so tien an co,muavo het 3/4 so tien con lai sau khi mua sach va vo an con lai 3000 dong.Hoi an co bao nhieu tien?bai5:mot can phong hinh chu nhat co chieu dai 8m,chieu rong bang 3/4 chieu dai.De lai nen can phong do,nguoi ta dung loai gach men hinh vuong canh 4dm.Hoi can phong duoc lat bang bao nhieu vien gach do ? (phan dien tich mach vua khong dang ke)bai6:mot hinh thoi co hieu do hai duong cheo la muoi 1/5 m,ti so cuado dai duong cheo be va duong cheo lon la 2/5.Hoi hinh t...
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bai4:an mua het 2/3 so tien an co,muavo het 3/4 so tien con lai sau khi mua sach va vo an con lai 3000 dong.Hoi an co bao nhieu tien?
bai5:mot can phong hinh chu nhat co chieu dai 8m,chieu rong bang 3/4 chieu dai.De lai nen can phong do,nguoi ta dung loai gach men hinh vuong canh 4dm.Hoi can phong duoc lat bang bao nhieu vien gach do ? (phan dien tich mach vua khong dang ke)
bai6:mot hinh thoi co hieu do hai duong cheo la muoi 1/5 m,ti so cuado dai duong cheo be va duong cheo lon la 2/5.Hoi hinh thoi do co dien tich la bao nhieu de-xi-met vuong
cac ban giup minh nhe
hinh thoi ABCD co dien tich 220,5 xang - ti - met vuong, do dai duong cheo BD la 18 cm. tim do dai duong cheo AC cua hinh thoi do.
Mot hinh thoi co tong do dai 2 duong cheo bang 32cm.Hieu do dai 2 duong cheo bang 4cm.Hoi hinh thoi co dien tich la bao nhieu?
Tong do daihai duong cheo cua hinh thoi la 6\(\frac{1}{5}\)m, hieu hai duong cheo la 2\(\frac{2}{5}\)m. Tinh dien tich hinh thoi
1
.Mot hinh thoi co tong do dai hai duong cheo la 35,5cm.Duong cheo kem duong cheo lon 5,5cm.Tinh dien tich cua hinh thoi do.
Mot hhinh thoi co dien tich bang dien tich mot hinh binh hanh co day la 20cm,chieu cao la 30cm.Tinh do dai duong cheo thu 2 cua hinh thoi,biet duong cheo thu 1 la 25cm
1 hinh thoi co do dai duong cheo thu nhat bang do dai canh hinh vuong co dien tich 81dm vuong , duong cheo thu 2 co do dai bang 4/3 do dai duong cheo thu nhat . tinh dien tich hinh thoi .