Given an array of points on the X-Y plane `points` where `points[i] = [xi, yi]`, return the area of the largest triangle that can be formed by any three different points. Answers within `10-5` of the actual answer will be accepted.

Example 1:

    Input: points = [[0,0],[0,1],[1,0],[0,2],[2,0]]
    Output: 2.00000
    Explanation: The five points are shown in the above figure. The red triangle is the largest.

Example 2:

    Input: points = [[1,0],[0,0],[0,1]]
    Output: 0.50000

Constraints:

- `3 <= points.length <= 50`
- `-50 <= xi, yi <= 50`
- All the given points are unique.