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 side of a rhombus is 22 m and length of one of its diagonals is 16 m . the area of the rhombus is ? 
Options: a ) 327.9 , b ) 325.9 , c ) 347.7 , d ) 357.9 , e ) 327.9
[EX A]: a

[EX Q]: Problem: the slant height of a cone is 13 cm and radius of the base is 9 cm , find the curved surface of the cone ? 
Options: a ) 367 , b ) 378 , c ) 365 , d ) 26 , e ) 28
[EX A]: a

[EX Q]: Problem: the width of a rectangular hall is ½ of its length . if the area of the hall is 450 sq . m , what is the difference between its length and breadth ? 
Options: a ) 8 m , b ) 10 m , c ) 12 m , d ) 15 m , e ) 17 m
[EX A]:
d