kimyongtits
kimyongtits kimyongtits
  • 10-11-2017
  • Mathematics
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The total surface area is 112cm². Work out the value of x. Please include working out.

The total surface area is 112cm Work out the value of x Please include working out class=

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dserrano2904
dserrano2904 dserrano2904
  • 10-11-2017
It 20 and if + it withe x qnd you can so it is 20x
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addyTT addyTT
  • 10-11-2017
Area = 2(10x) + 2(2 x 10) + 2(2x)
112 = 20x + 40 + 4x
112-40 = 24x
72=24x
3=x
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