what is the area of a triangle with the following vertices l ( 2 , 3 ) , m ( 5 , 1 ) , and n ( 3 , 5 ) ?
there is a direct formula to calculate the are of a triangle based on coordinates of its vertices and one could use it to solve this problem . though if you make a diagram minimum simple calculations will be needed : answer : b .
triangle_area_three_edges(sqrt(add(power(subtract(5, 2), const_2), power(subtract(1, 3), const_2))), sqrt(add(power(subtract(2, 3), const_2), power(subtract(3, 5), const_2))), sqrt(add(power(subtract(1, 5), const_2), power(subtract(3, 5), const_2))))