What is the area of a triangle with the following vertices L(1, 2), M(5, 1), and N(3, 5) ?

What is the area of a triangle with the following vertices L(1, 2), M(5, 1), and N(3, 5) ?

Quiz

Answer/Solution

7

Steps/Work

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: E.