In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: an equilateral triangle t 2 is formed by joining the mid points of the sides of another equilateral triangle t 1 . a third equilateral triangle t 3 is formed by joining the mid - points of t 2 and this process is continued indefinitely . if each side of t 1 is 40 cm , find the sum of the perimeters of all the triangles . 
Options: ['a ) 180 cm', 'b ) 220 cm', 'c ) 240 cm', 'd ) 270 cm', 'e ) 300 cm']

Answer: c


Question: Problem: if circles x and y have the same area and circle x has a circumference of 12 π , half of the radius of circle y is : 
Options: a ) 16 , b ) 8 , c ) 3 , d ) 2 , e ) 1

Answer: c


Question: Problem: the area of a rhombus is equal to the area of a rectangle whose length is 20 cm and the breadth is 10 cm . if one of the diagonals is 32 cm what is the length of other diagonal ? 
Options: ['a ) 10', 'b ) 12.5', 'c ) 15', 'd ) 16', 'e ) 17.5']

Answer:
b