The sangguniang kabataan would like to fence the trapezium park. the first post is located at (0, 12), 2nd post at (12,12), 3rd post at (12,2), and the 4th post at (-8, -2). a. how long is the wired needed to fence the entire park? b. what information helped you solved the problem? c. what mathematical concepts did you use to solve the problem?