What is the area of a triangle with the following vertices L(1, 2), M(5, 1), and N(3, 5) ?
Pick one:
A) 3
B) 4
C) 5
D) 6
E) 7
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: 7.
<result>E</result>
What is the area of a triangle with the following vertices L(1, 2), M(5, 1), and N(3, 5) ?