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: the sides of a triangle are in the ratio 5 : 12 : 13 and its perimeter is 360 m , its area is ? 
Options: a ) 180 , b ) 882 , c ) 277 , d ) 261 , e ) 281
a

Problem: the length of each side of square a is increased by 100 percent to make square b . if the length of the side of square b is increased by 25 percent to make square c , by what percent is the area of square c greater than the sum of the areas of squares a and b ? 
Options: a ) 75 % , b ) 25 % , c ) 10 % , d ) 45 % , e ) 180 %
d

Problem: the diagonals of a rhombus are 15 cm and 20 cm . find its area ? 
Options: a ) 158 , b ) 129 , c ) 150 , d ) 123 , e ) 117

c