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4.2 The second moment of area of a rectangle is given by I = ba3 If b and d are measured as 12cm and

4.2 The second moment of area of a rectangle is given by I = ba3 If b and d are measured as 12cm and 5cm respectively and the measurement error are +1Imm in b and -1.8mm in d, find the error in the calculated value of I. Interpret your answer. (5) /10/

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