An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is: Choose the correct choice from the following answers: A) 1.04 B) 2.04 C) 3.04 D) 4.04 E) None of these
Explanation:   100 cm is read as 102 cm.   A1 =(100 × 100)cm2 and A2= (102 × 102)cm2   (A2 - A1) = [1022 - 1002]   = (102 + 100) x (102 - 100) = 404 cm2 Answer: 4.04
<result>D</result>
An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is: