Problem: an error 6 % in excess is made while measuring the side of a square . what is the percentage of error in the calculated area of the square ?
Rationale: "percentage error in calculated area = ( 6 + 6 + ( 6 ã — 6 ) / 100 ) % = 12.36 % answer : e"
annotated_formula: divide(multiply(subtract(square_area(add(const_100, 6)), square_area(const_100)), const_100), square_area(const_100))