Problem: an error 3 % 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 = ( 3 + 3 + ( 3 ã — 3 ) / 100 ) % = 9.09 % answer : a"
annotated_formula: divide(multiply(subtract(square_area(add(const_100, 3)), square_area(const_100)), const_100), square_area(const_100))