17-11-2015
Mathematics

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Since 1959, the inch we was use has been defined as exactly 2.54 centimeters. Does a square inch equal 2.54 square centimeters? Explain. Use multiplication to justify your reasoning.

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17-11-2015

area =legnth times width
square=legnth times legnth
2.54 is the legnth
area=2.54 times 2.54=6.4516 cm^2

so a square inch does not equal 2.54 cm^2

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