In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
--------
Question: Problem: the area of a triangle will be when a = 2 m , b = 5 m , c = 7 m , a , b , c being lengths of respective sides ? 
Options: a ) 2 , b ) 7 , c ) 5 , d ) 3 , e ) 4

Answer: b


Question: Problem: if circles x and y have the same area and circle x has a circumference of 14 π , half of the radius of circle y is : 
Options: ['a ) 16', 'b ) 8', 'c ) 4', 'd ) 3.5', 'e ) 1']

Answer: d


Question: Problem: if the radius of a circle is decreased 30 % , what happens to the area ? 
Options: a ) 51 % decrease , b ) 20 % decrease , c ) 36 % decrease , d ) 40 % decrease , e ) 50 % decrease

Answer:
a