Find the area of the shaded polygon.
https://homework.russianschool.com/resource?key=17359iojf2yy1
Pick's formula for the area is: A = I + B/2 - 1
where I = number of interior points = 2
B = number of boundary points = 10
A = 2 + 10/2 - 1 = 2 + 5 - 1 = 6
