1.

The area of a rectangular plot is 582 m the length of the plot is one more than twice its breadth find the length and breadth of the plot

Answer»

\blue{\bold{\underline{\underline{Answer:}}}}

\green{\tt{\therefore{Length=34.6\:m}}}

\green{\tt{\therefore{Breadth=16.8\:m}}}

\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}

\green{\underline \bold{<klux>GIVEN</klux> :}} \\  \tt: \implies Area \: of \: rectangle  = 582 \:  {m}^{2}  \\  \\   \tt: \implies Length \: of \: plot  \: is \: one \: more \: that \: twice \: its \: Breadth \\  \\ \red{\underline \bold{To \: Find :}} \\  \tt:  \implies Length = ? \\  \\ \tt:  \implies Breadth = ?

ACCORDING to given QUESTION :

\circ \:  \text{Let \: Breadth \: be \: x} \\  \\   \circ \: \text{Length = 1 + 2x} \\  \\ \bold{As \: we \: know \: that} \\  \tt:  \implies Area \: of \: rectangle = Length \times Breadth \\  \\ \tt:  \implies 582 = (1 + 2x) \times x \\  \\ \tt:  \implies 582 = x + 2 {x}^{2}  \\  \\ \tt:  \implies  {2x}^{2}  + x - 582 = 0 \\  \\ \tt:  \implies  x =  \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a}  \\  \\ \tt:  \implies  x =  \frac{ - 1 \pm \sqrt{ {1}^{2} - 4 \times 2 \times 582 } }{2 \times 2}  \\  \\ \tt:  \implies  x =  \frac{ - 1 \pm \sqrt{1 + 4656} }{4}  \\  \\ \tt:  \implies  x =  \frac{ - 1 \pm \sqrt{4657} }{4}  \\  \\ \tt:  \implies  x = \frac{ - 1 \pm68.2}{4}  \\  \\ \tt:  \implies  x =  \frac{67.2}{4}  \\  \\  \green{\tt:  \implies  x = 16.8 \: m} \\  \\  \bold{Note-}  \: \tt{ Length \: and \:Breadth \: cannot \: be \: in \: negative} \\  \\  \green{\tt \therefore Length = 1 + 2 \times 16.8 = 34.6 \: m} \\  \\ \green{\tt \therefore Breadth = x = 16.8 \: m}



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