hay cho biet dien tich toan phan mot hinh lap phuong tang them bao nhieu phan tram neu tang canh hinh lap phuong do them 10% ?
hoi dien tich toan phan mot hinh lap phuong tang len la.....
TINH DIEN TICH XUNG QUANH VA DIEN TICH TOAN PHAN CUA HING LAP PHUONG CO CANH 6dm .NEU TANG DO DAI CANH CUA HINH LAP PHUONG LEN 2 LAN THI DIEN TICH TOAN PHAN CUA HINH LAP PHUONG DO TANG THEM ? LAN
A) Mot hinh lap Phuong co canh 4 cm. Neu canh hinh lap Phuong do tang gap 2 lan thi dien tich toan Phan cua no gap len may lan
B) Mot hinh lap Phuong co tong dien tich xung quanh .ca dien tich toan phan la 640 cm v uong. Vay canh cua hinh lap Phuong do la bao nhieu
neu canh hinh lap phuong giam di 20% thi dien tich toan phan cua hinh lap phuong do giam di bao nhieu phan tram
Giup minh bai nay nhe
Mot cua hang ban 20% gia ban .Hoi cua hang do lai bn % tien von?
Neu canh hinh lap phuong tang len 10% thi dien tich toan phan cua hinh lap phuong tang bn %?
Giai han ra nhe
môt hinh lap phuong co canh 4cm , neu canh cua hinh lap phuong len 3 lan thi dien tich xung quanh va dien tich toan phan cua no tang them bao nhieu lan? tai sao?
nhanh len mk dang can gap
Hinh lap phuong A co canh gấp đôi canh cua hinh lap phuong B.tim ti so phan tram giua dien tich toan phan cua hinh lap phuong B so voi dien tich toan phan cua hinh lap phuong A
1 hinh lap phuong co canh la 7 cm neu canh cua hinh lap phuong tang len 4 lan hoi S toan phan tang len bn lan the tich tang bn lan
hinh lap phuong thu nhat co dien tich xung quanh la 324cm2 . hinh lap phuong thu hai co dien tich toan phan la 1,5dm2 . hoi canh cua hinh lap phuong thu nhat dai hon canh cua hinh lap phuong thu 2 bao nhieu cm
AI LAM NHANH MINH TICK CHO