The rectangle below has been divided into unit squares. Find the total area of the blue shaded region, in square units.
4 x 2 rectangle at the center = 8
Two triangles at top / bottom with bases of 2 and heights of 1 = 2
Two triangle at left / right with bases of 5 and heights of 2 = 10
Total area = 8 + 2 + 10 = 20
+1443 
