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anonymous
 one year ago
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
anonymous
 one year ago
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

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Study_together @welshfella @hotguy @Vocaloid

Study_together
 one year ago
Best ResponseYou've already chosen the best response.0This link might help.. http://openstudy.com/study#/updates/552d2848e4b0b938367eb73b

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1"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
 one year ago
Best ResponseYou've already chosen the best response.0You just multiply area and the perimeter by 4.5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okayy so it would be new width would be 27 the new length is 36

Study_together
 one year ago
Best ResponseYou've already chosen the best response.0@Vocaloid you didn't multiply the area

Study_together
 one year ago
Best ResponseYou've already chosen the best response.0And the same with the area...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1@liana1036 right! the new width is 27 and the new length is 36 perimeter = 2(new width + new length) = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1good! area = (new length)*(new width) = ?

Study_together
 one year ago
Best ResponseYou've already chosen the best response.0Yep, you got it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks to the both of you c:

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1shortcut method: new perimeter = 4.5*(old perimeter) new area = 4.5*4.5*(old area)
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