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

Problem: in a certain parallelogram the degree measure of one angle exceeds that of the other by 20 what is the degree measure of the smaller angle ? 
Options: a ) 75 , b ) 80 , c ) 85 , d ) 90 , e ) 95
b

Problem: the length of a rectangle is increased by 45 % and its breadth is decreased by 20 % . what is the effect on its area ? 
Options: a ) 1288 , b ) 1299 , c ) 1000 , d ) 10000 , e ) 11600
e

Problem: square x is inscribed in circle y . if the perimeter of x is 64 , what is the circumference of y ? 
Options: ['a ) 16 √ 2 π', 'b ) 8 √ 2 π', 'c ) 22 √ 2 π', 'd ) 12 √ 2 π', 'e ) 9']

a