SpiritSOTC SpiritSOTC

25-05-2017
Mathematics

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The scale factor of two similar solids is 3:7. What is the ratio of their corresponding areas?

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mreijepatmat mreijepatmat

26-05-2017

Note, if you have a linear scale, then the surface will be the square of this scale & for the volume will be the cube of the linear, so the linear scale =3/7,
then the ratio of the corresponding area will be 3²/7² = 9/49

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