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

[EX Q]: Problem: the perimeter of one square is 48 cm and that of another is 20 cm . find the perimeter and the diagonal of a square which is equal in area to these two combined ?
Options: ['a ) 5 cm', 'b ) 13 2 cm', 'c ) 12 cm', 'd ) 6 cm', 'e ) 8 cm']
[EX A]: b

[EX Q]: Problem: find the surface area of a 8 cm x 4 cm x 2 cm brick .
Options: a ) 136 cu cm , b ) 112 cu cm , c ) 164 cu cm , d ) 180 cu cm , e ) none
[EX A]: b

[EX Q]: Problem: a small , rectangular park has a perimeter of 560 feet and a diagonal measurement of 400 feet . what is its area , in square feet ?
Options: a ) 76,800 , b ) 19,600 , c ) 20,000 , d ) 20,400 , e ) 20,800
[EX A]:
a