anonymous
  • anonymous
perimeter=23 feet
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
area?
anonymous
  • anonymous
Of what figure?
anonymous
  • anonymous
|dw:1317774831555:dw|

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anonymous
  • anonymous
Is the whole bottom side 2x ft long?
anonymous
  • anonymous
yes
anonymous
  • anonymous
The perimeter is the sum of the sides, so: x + 2x + (3 + x) = 23 4x + 3 = 23 4x = 20 x = 5
anonymous
  • anonymous
thanks
anonymous
  • anonymous
Now for the area you need to find the height:
anonymous
  • anonymous
yes but i know about that i just need the perimeter and i aslo have one more
anonymous
  • anonymous
Let y be the length of the left part of the bottom side, we have: y^2 + h^2 = 5^2 and: (10 - y)^2 + h^2 = 8^2
anonymous
  • anonymous
|dw:1317775181974:dw|
anonymous
  • anonymous
and this time perimeter=24 meteres
anonymous
  • anonymous
so you sum all four sides: 2x + (x+3) + 2x + (x + 3) = 24 6x + 6 = 24 6x = 18 x = 3
anonymous
  • anonymous
i think its that way because my math teacher doesnt teach us at all and me and my classmates get confused
anonymous
  • anonymous
thanks for explaining to me

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