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

[Q]: Problem: if a square mirror has a 20 - inch diagonal , what is the approximate perimeter q of the mirror , in inches ? 
Options: a ) 40 , b ) 60 , c ) 80 , d ) 100 , e ) 120
[A]: b


[Q]: Problem: carol and jordan draw rectangles of equal area . if carol ' s rectangle measures 12 inches by 15 inches and jordan ' s rectangle is 6 inches long , how wide is jordan ' s rectangle , in inches ? 
Options: ['a ) 24', 'b ) 26', 'c ) 28', 'd ) 30', 'e ) 32']
[A]: d


[Q]: Problem: the cube root of what integer power of 2 is closest to 50 ? 
Options: a ) 16 , b ) 17 , c ) 18 , d ) 19 , e ) 20
[A]:
b