Các câu hỏi tương tự
1 tam giac co do dai day 8m chieu cao 6,5m neu bot chieu cao 1,5m thi day phai tang them bao nhieu m de dien tich khong thay doi
neu giam chieu dai cua hinh chu nhat di 20% thi phai tang chieu rong cua hinh chu nhat do len ...% de dien tich cua hinh chu nhat khong thay doi
neu tang chieu rong cua 1 hinh chu nhat them 25% va muon dien tich gap len 3 lan thi chieu dai phai thay doi nhu the nao
hoi neu chieu dai cua mot hinh chu nhat giam di 20% thi chieu rong cua hinh do phai tang them bao nhieu phan tram de dien tich cua hinh khong thay doi
Mot hinh chu nhat neu tang chieu dai cua no them 20% thi phai giam chieu rong di bao nhieu phan tran de dien tich khong thay doi.
cau 1 : mot cua hang ban lai 20% so voi gia ban . Hoi cua hang lai bao nhieu phan tram so voi gia von
cau 2 : de dien tich mot hinh chu nhat tang len gap doi ma chieu rong chi tang them 25% thi chieu dai phai tang them bao nhieu phan tram
cau 3 : neu giam do dai canh cua mot hinh vuong di 10% thi dien tich cua hinh vuong do giam di bao nhieu phan tram
cau 4 : neu tang do dai canh cua mot hinh vuong them 10% thi dien tich cua hinh vuong do tang them bao nhieu phan tram
Neu chieu rong cua mot hinh chu nhat tang len 20% va chieu dai giam di 20% thi dien tich cua hinh chu nhat do thay doi the nao
neu tang chieu rong hinh hinh chu nhat them 25% va muon dien tich hinh chu nhat do tang len gap 3 lan thi phai thay doi chieu dai nhu the nao
neu chieu dai cua mot hinh chu nhat tang them 60% thi chieu rong cua no phai giam di bao nhieu phan tram de dien tich cua hinh khong thay doi