anhthunguyen anhthunguyen

19-11-2017
Mathematics

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A photo is 8cm and 12cm long. The length and width are increased by an equal amount in order to double the area of the photo. What are the dimensions of the new photo?

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carlafossil320 carlafossil320

19-11-2017

8 x 12=96cm^2
Double 96 = 192cm^2
8+4=12
12+4=16
16 x 12=192cm^2
Increase is 4cm

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