Duong kinh mot hinh tron tang them 10%. Hoi dien tich hinh tron do tang them bao nhieu phan tram?
Dien tich cua hinh tron tang bao nhieu phan tram neu ban kinh hinh tron tang them 15 phan tram
tinh dien tich mot hinh tron,neu tang duong kinh hinh tron them 20% thi dien tich hinh tron do tang them 152,3214cm2.
Neu ban kinh hinh tron tang 10% thi dien tich tang bao nhieu phan tram ?
Neu ban kinh mot hinh tron tang them 20% thi dien tich hinh tron do tang them bao nhieu %
ban kinh hinh tron tang len 10% thi dien tich tang len bao nhieu phan tram
neu duong kinh hinh tron tang them 30% thi chu vi hinh tron do tang bao nhieu phan tram
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
ban kinh cua mot hinh tron tang 20 phan tram thi dien tich hinh tron do thay doi nhu the nao ? vi sao ?