TASK DEFINITION: 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: Problem: if radius of a circle is reduced by 10 % , then how much % of its area will be reduced ?
Options: ['a ) 10 %', 'b ) 19 %', 'c ) 20 %', 'd ) 36 %', 'e ) 30 %']

SOLUTION: b

PROBLEM: Problem: a semicircle has a radius of 9 . what is the approximate perimeter of the semicircle ?
Options: a ) 16 , b ) 25 , c ) 33 , d ) 46 , e ) 58

SOLUTION: d

PROBLEM: Problem: find the area of a rhombus one side of which measures 20 cm and one diagonal is 24 cm .
Options: a ) 370 cm 2 , b ) 365 cm 2 , c ) 380 cm 2 , d ) 384 cm 2 , e ) 394 cm 2

SOLUTION:
d