chloeburnes9876 chloeburnes9876
  • 14-11-2014
  • Mathematics
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When finding the perimiter of a figure on a grid, why do you not count the spaces inside the grid?

When finding the perimiter of a figure on a grid why do you not count the spaces inside the grid class=

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jcjenkins393
jcjenkins393 jcjenkins393
  • 14-11-2014
Because the inside is the area, and the outside or exactly on the line is the perimeter 
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dannyboy49
dannyboy49 dannyboy49
  • 14-11-2014
Counting the 'spaces' inside the grid refers to finding the area of the shape, as that's what surface area is: the amount of space inside the shape, so the number of a certain size of spaces inside a grid. The perimeter is completely different. It is the distance around the side of the shape, i.e. the sum of the length of each of the shape's sides.
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