Measure the area of the rectangular box with length of 11.5 cm (plus or minus) 0.1 cm, and a height of 1 cm(plus or minus) 0.1 cm. Use a two-repetition approach: the highest and lowest possible bounds. The standard or accepted value is 9.80 cm^2. Give the percent relative and absolute errors. Discuss the sources of these errors. Which dimension contributes greatest to the relative error?

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