anonymous
  • anonymous
What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 4.5? Perimeter = 46 cm, area = 131.25 cm2 Perimeter = 126 cm, area = 972 cm2 Perimeter = 46 cm, area = 972 cm2 Perimeter = 126 cm, area = 131.25 cm2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
@Study_together @welshfella @hotguy @Vocaloid
Study_together
  • Study_together

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Vocaloid
  • Vocaloid
"enlarged by a scale factor of 4.5" means that the length and width each get multiplied by 4.5 old length = 8 old width = 6 new length = 4.5*(old length) = __ ? new width = 4.5*(old width) = __ ?
Study_together
  • Study_together
You just multiply area and the perimeter by 4.5
anonymous
  • anonymous
okayy so it would be new width would be 27 the new length is 36
Study_together
  • Study_together
@Vocaloid you didn't multiply the area
Study_together
  • Study_together
And the same with the area...
Vocaloid
  • Vocaloid
@liana1036 right! the new width is 27 and the new length is 36 perimeter = 2(new width + new length) = ?
Study_together
  • Study_together
Hope it helps
anonymous
  • anonymous
126
Vocaloid
  • Vocaloid
good! area = (new length)*(new width) = ?
Study_together
  • Study_together
Yes
Study_together
  • Study_together
good
anonymous
  • anonymous
972
Vocaloid
  • Vocaloid
excellent!
Study_together
  • Study_together
Yep, you got it
anonymous
  • anonymous
Thanks to the both of you c:
Vocaloid
  • Vocaloid
shortcut method: new perimeter = 4.5*(old perimeter) new area = 4.5*4.5*(old area)
Study_together
  • Study_together
np :)

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