An error 3% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is
Pick one
A) 6.04%
B) 6.14%
C) 6.23%
D) 6.26%
E) 6.09%
100 cm is read as 102 cm.   A1 = (100 x 100) cm2 and A2 (103 x 103) cm2.   (A2 - A1) = [(103)2 - (100)2]   = (103 + 100) x (103 - 100)   = 609 cm2.   Percentage error = 6.09   6.09%
<result>E</result>
An error 3% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is