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: the radius of a cylinder is 2 r units and height is 3 r units . find the curved surface ? 
Options: a ) 18 π r 2 , b ) 12 π r 2 , c ) 3 π r 2 , d ) 6 π r 2 , e ) 9 π r 2

A: b
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Q: Problem: the length of a rectangular garden is three times its width . if the area of the rectangular garden is 432 square meters , then what is the width of the rectangular garden ? 
Options: a ) 8 , b ) 9 , c ) 10 , d ) 11 , e ) 12

A: e
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Q: Problem: if anangletis defined as 1 percent of 1 degree , then how many anglets are there in a quarter circle ? 
Options: a ) 0.36 , b ) 3.6 , c ) 9000 , d ) 3,600 , e ) 36,000

A:
c
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