anonymous
  • anonymous
What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 5.5? Perimeter = 50 cm, area = 155.25 cm2 Perimeter = 50 cm, area = 1,452 cm2 Perimeter = 154 cm, area = 155.25 cm2 Perimeter = 154 cm, area = 1,452 cm2 Also, the rectangle is 6 Length and 8 width
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
|dw:1435288620007:dw|
owlet
  • owlet
Perimeter is the total sum of the side of a polygon. Rectangles perimeter is 2(lengths) + 2(width). The area for the Rectangle is length x width
anonymous
  • anonymous
So would I be doing 12 times 18? I don't understand what the 2 means

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anonymous
  • anonymous
@owlet
anonymous
  • anonymous
err 12 times 16 my bad
owlet
  • owlet
For the perimeter: (2 x length) + (2 x width) your length is 6 and your width is 8. yes, 12 and 16 but you have to add these two together and since the question says it is scaled by 5.5 , you have to multiply their sum by 5.5
anonymous
  • anonymous
I was multiplying my bad
owlet
  • owlet
it's okay :) so what is 12 + 16?
anonymous
  • anonymous
all added together and multiplied by 5.5 is 154
owlet
  • owlet
yes, that's right, so that will be your perimeter. Next is the area which is simply : length x width , what will you get?
anonymous
  • anonymous
48 which enlarged by 5.5 is 264
owlet
  • owlet
are you sure? each dimension is enlarge, so it should be: (5.5 x 6) x (5.5 x 8)
anonymous
  • anonymous
Thats what i did wrong
anonymous
  • anonymous
so the answer is D Thank you
owlet
  • owlet
For the perimeter, it is okay to multiply the answer at the end because we are just adding the dimensions but for the area, we have to multiply each dimension because we need to multiply them. And you're welcome :)

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