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: if the sum of a number and its square is 240 , what is the number ? 
Options: a ) 15 , b ) 77 , c ) 25 , d ) 87 , e ) 171
[EX A]: a

[EX Q]: Problem: the slant height of a cone is 22 cm and radius of the base is 7 cm , find the curved surface of the cone ? 
Options: a ) 426 , b ) 284 , c ) 483 , d ) 256 , e ) 428
[EX A]: c

[EX Q]: Problem: what is the maximum number of pieces that a circular pizza can be cut into with 5 linear cuts ? 
Options: a ) 10 , b ) 14 , c ) 15 , d ) 16 , e ) 17
[EX A]:
d