You can use Pick's theorem, where:
Area = Number of interior points (points inside the polygon) +
· Number of boundary points (points on the polygon's perimeter) - 1
so:
1.Yellow:
Interior points = 3
Boundary points = 8
2. Red:
Interior points = 2
Boundary points = 10
Area = Number of interior points (points inside the polygon) +
so:
1.Yellow:
Interior points = 3
Boundary points = 8
2. Red:
Interior points = 2
Boundary points = 10
