Task: Question Answering
Input (English): Problem: calculate the area of a triangle , if the sides of are 39 cm , 36 cm and 15 cm , what is its area ? 
Options: a ) 570 cm 2 , b ) 370 cm 2 , c ) 170 cm 2 , d ) 271 cm 2 , e ) 270 cm 2
Output (English): e