A rectangle measuring 7cm by 4cm is enlarged by a ratio of 2:1.what is the area of the enlarged rectangle.

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  1. the new area is (7*2)(4*2)

    Note that the area grows by the square of the magnification ratio

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  2. 7*2/1 =14 cm

    4*2/1= 8cm

    .: the area of enlarged rectangle =14*8 =112cm^2

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  3. 7cm×2

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  4. poop

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