Chiều dài hình chữ nhật hơn chiều rộng là :
2.5 x 2 = 5 ( cm )
Nửa chu vi hình chữ nhật là :
110 : 2 = 55 ( cm )
Chiều rộng hình chữ nhật là :
( 55 - 5 ) : 2 = 25 ( cm )
Chiều dài hình chữ nhật là :
55 - 25 = 30 ( cm )
Diện tích hình chữ nhật là :
25 x 30 = 750 ( cm^2 )
Đáp số : ...
GIẢI
nếu giảm chiều dài 2,5 cm tăng chiều rộng 2,5 cm thì hình chữ nhật trở thành hình vuông vậy chiều dài hơn chiều rộng là :
2,5 + 2,5 = 5 ( cm )
nửa chu vi hình chữ nhật là :
110 : 2 = 55 ( cm )
chiều dài hình chữ nhật là :
( 55 + 5 ) : 2 = 30 ( cm )
chiều rộng hình chữ nhật là :
55 - 30 = 25 ( cm )
diện tích hình chữ nhật là :
30 x 25 = 750 ( cm2 )
đáp số : 750 cm2
750 10000000000000000000000000% LUN
sai ca
750 moi la dung100000000000000000000000000000000
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ngu 750 m2 mới đúng tui là học sinh cấp tỉnh đó vừa là lớp trưởng vừa là nhóm trưởng lun 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ĐO NGE
750M2 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%lun neu ko dung tause mat 1111111111111119999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ tau cuoc 88888999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999k$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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750 do minh vua lam dung roi,minh duoc 600 diem luon
