Answer:
87.5%
Step-by-step explanation:
Knowing that the diagonals of a square divides it to be half, each small triangles are 1/4 of a square. Since there are two squares, the non-shaded area is
[tex]1-1/8=7/8=0.875[/tex]
Multiply the decimal by 100 to get the percentage.
(If the question is taking about only the left square, it would be 75 percent, but I believe its taking of both squares.)
