Twelve 1 by 1 squares form a rectangle, as shown. What is the total area of the shaded regions?
Answer Choices
A. 8
B. 9
C. 10
D. 11
E. 12
Twelve 1 by 1 squares form a rectangle, as shown. What is the total area of the shaded regions?
Answer Choices
A. 8
B. 9
C. 10
D. 11
E. 12