In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: the ratio of radius of a circle and the side of a square is 2 : 3 . find the ratio of their areas : 
Options: a ) 2 : 1 , b ) 4 : 9 , c ) 8 : 77 , d ) 4 : 121 , e ) none
[EX A]: b

[EX Q]: Problem: the length of a rectangle is reduced by 22 % . by what % would the width have to be increased to maintain the original area ? 
Options: a ) 14 % , b ) 15 % , c ) 28 % , d ) 30 % , e ) 35 %
[EX A]: c

[EX Q]: Problem: the parameter of a square is equal to the perimeter of a rectangle of length 8 cm and breadth 6 cm . find the circumference of a semicircle whose diameter is equal to the side of the square . 
Options: a ) 23.56 , b ) 23.59 , c ) 23.55 , d ) 23.53 , e ) 11.0
[EX A]:
e