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son4ous [18]
3 years ago
8

The length of a rectangle is 2 cm less than twice the width. The area of the rectangle is 112 cm2. Find the length and width of

the rectangle.
Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Let breadth be x

  • Length=2x-2

We know

\boxed{\sf Area=Length\times Breadth}

\\ \sf\longmapsto 112=x(2x-2)

\\ \sf\longmapsto 2x^2-2x-112=0

\\ \sf\longmapsto x=-7\:or\:x=8

  • Ignore negative value

Now

\\ \sf\longmapsto Length=2x-2=2(8)-2=16-2=14

\\ \sf\longmapsto Breadth=8

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