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Now ,
The breadth of reactangle = x
The length of reactangle = x +4
area of reactangle = l×b = x(x+4)
New breadth =( x+3 )
New length = (x+4+3)=(x+7)
area of reactangle new = area of reactangle old
x(x+4)+81= (x+3)(x+7
x²+4x+81= x²+10x+21
81-21= 10x-4x
60= 6x
x = 60/6
x= 10 cm
the length of given reactangle = x+4=> 10+4=14cm
length is 14 cm and breadth is 10 cm in measurement .
I hope it's help you
The breadth of reactangle = x
The length of reactangle = x +4
area of reactangle = l×b = x(x+4)
New breadth =( x+3 )
New length = (x+4+3)=(x+7)
area of reactangle new = area of reactangle old
x(x+4)+81= (x+3)(x+7
x²+4x+81= x²+10x+21
81-21= 10x-4x
60= 6x
x = 60/6
x= 10 cm
the length of given reactangle = x+4=> 10+4=14cm
length is 14 cm and breadth is 10 cm in measurement .
I hope it's help you
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