Answer with Explanation:

100 cm is read as 102 cm.

Therefore, A1 = (100 x 100) cm2 and A2 (102 x 102) cm2.

(A2 - A1) = [(102)2 - (100)2]

= (102 + 100) x (102 - 100)

= 404 cm2.

 Percentage error = ( 404 x 100/ 100 x 100 )% = 4.04%

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