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March 27, 2017

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A band poster that measures 90 cm by 40 cm is reduced by a scale factor of 1/6 so it can fit on a postcard.
a) What are the dimensions of the postcard image?

b) By what scale factor, to the nearest hundredth, was the area of the poster decreased in the reduction process?

  • math - ,

    a. Dimensions=90/8 by 40/8 = 11.25cm by 5cm.

    b. A2/A1 = (11.25*5)/(90*40) = 64.

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