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The length of a rectangular garden is 12 m more than its breadth. The nof its area is equal to 4 times the numerical value of its perimeter. Find theof the garden.umerical value38dimensions |
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Answer» Let breadth=x mLength=x+12 mArea=Perimeterlength*breadth=4*2(length+breadth)x(x+12)=8(x+x+12)x(x+12)=8(2x+12)x²+12x=16x+96x²-4x-96=0x²-12x+8x-96=0x(x-12)+8(x-12)=0(x-12)(x+8)=0x=12,-8 So breadth=12 mlength=24 m |
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