anonymous
  • anonymous
The perimeter of a rectangle is 10 cm, and its dimensions are tripled. What is the perimeter of the larger rectangle? 12 cm 20 cm 30 cm 10 cm
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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mathteacher1729
  • mathteacher1729
Do you know what the phrase "Dimensions are tripled" means? (like, can you draw a before and after picture)
lgbasallote
  • lgbasallote
sorry for that..continue the teaching @mathteacher1729 :)
anonymous
  • anonymous
It means that its tripled. I don't think i can draw it

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mathteacher1729
  • mathteacher1729
What, exactly, is tripled? Not trying to be a poo-poo head, depending on how you interpret this problem, there are different answers.
anonymous
  • anonymous
the perimeter of the rectangle
mathteacher1729
  • mathteacher1729
The dimensions are not the perimeter. The dimensions mean "the length and the width". So if the length is say, 4 and the width is 1, then the perimeter is 4 + 4 + 1 + 1 |dw:1341673430917:dw|
mathteacher1729
  • mathteacher1729
Now if you triple the dimensions, that means you triple the length and triple the width... 12 + 12 + 3 + 3 |dw:1341673481562:dw|
mathteacher1729
  • mathteacher1729
|dw:1341673518998:dw|
anonymous
  • anonymous
Would it be 30?
mathteacher1729
  • mathteacher1729
Why do you say 30?
anonymous
  • anonymous
12+12+3+3=30
mathteacher1729
  • mathteacher1729
You got it. :)
anonymous
  • anonymous
Great! Thanks so much

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