Hi people,
I'm currently trying to find a formula for calculating an Area of Cross/Plus Shape
It looks like this : +
It has 12 sides (12 coordinates)
For example
1,2
2,2
2,1
3,1
3,2
4,2
4,3
3,3
3,4
2,4
2,3
1,3
I've tried using this formula:
Area of any polygon (Coordinate Geometry) - Math Open Reference
The expected answer should be 5, but I got 4 instead.
Is there actually a formula for this?