faboulusamber faboulusamber
  • 02-10-2018
  • Mathematics
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Find the area of a rectangle with a perimeter of 12 meters and a base of 4 meters

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brainfoodz
brainfoodz brainfoodz
  • 02-10-2018
Considering the perimeter (P)
[tex]p = 2 \times b + 2 \times h[/tex]
where b is the base and h is the height, then
[tex]12 = 2 \times 4 \times 2 \times h \\ \\ h = \frac{12 - (2 \times 4)}{2} \\ \\ h = 2[/tex]
Being the area (A)
[tex]a = b \times h \\ \\ a = 4 \times 2 \\ \\ a = 8 {m}^{2} [/tex]

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