Open side of square is decreased by 2 m other is increased by 2m a rectangle will be formed whose area is 9 sq.m less than the area of quare find the side of square
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9-area of square = area of reactangle
9- side × side = length × breadth
9 - (side)^2 = side-2 × side+2
9- (side)^2 = (side)^2 - (2)^2
9 - (side)^2 = (side)^2 - 4
-(side)^2 - (side)^2 = -4 -9
-2(side)^2 = -13
cut the minus sign on both sides
2(side)^2 = 13
(side)^2 = 13/2
(side)^2 = 6.5
side = 2.55 m
hope it will be helpful
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9- side × side = length × breadth
9 - (side)^2 = side-2 × side+2
9- (side)^2 = (side)^2 - (2)^2
9 - (side)^2 = (side)^2 - 4
-(side)^2 - (side)^2 = -4 -9
-2(side)^2 = -13
cut the minus sign on both sides
2(side)^2 = 13
(side)^2 = 13/2
(side)^2 = 6.5
side = 2.55 m
hope it will be helpful
mark it as brainliest
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