AbelinoS140584 AbelinoS140584
  • 03-11-2022
  • Mathematics
contestada

A rectangular piece of metal has an area of 112 square centimeters. Its perimeter is 46 centimeters. What are the dimensions of the piece?

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NariyaJ86049 NariyaJ86049
  • 03-11-2022

Let the length of rectabgle be l and width of rectangle be b.

The equation for the area of rectangle is,

[tex]l\cdot b=112[/tex]

The equation for perimeter of rectangle is,

[tex]\begin{gathered} 2(l+b)=46 \\ l+b=23 \\ l=23-b \end{gathered}[/tex]

Substitute 23 - b for l in the equation lb

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