Answer and Explanation
Your Answer is
Correct Answer is B
Explanation
Putting together the white parts, you can find that it is exactly the area of 7 black parts. Therefore B.
21. Phuong drew a square that has sides 4 units long. He divided each side of the square into segments 1, 2, and 1 units long. He then drew lines to form squares, and shaded one of these new squares, as shown in the figure below. What fraction of the area of the original square is shaded?
