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: a certain cube floating in a bucket of water has between 75 and 85 percent of its volume below the surface of the water . if between 9 and 16 cubic centimeters of the cube ' s volume is above the surface of the water , then the length of a side of the cube is approximately
Options: ['a ) 4', 'b ) 5', 'c ) 7', 'd ) 8', 'e ) 9']
a

Problem: if the sides of a triangle are 26 cm , 24 cm and 12 cm , what is its area ?
Options: a ) 144 , b ) 772 , c ) 288 , d ) 266 , e ) 2848
a

Problem: the area of a parallelogram is 1764 sq m and its base is nine times size of the corresponding altitude . then the length of the base is ?
Options: a ) 21 , b ) 9 , c ) 11 , d ) 14 , e ) 7
d