Final answer:
Without a visual representation or a clearer description of the shaded area, it's not possible to determine the correct percentage of the shaded area represented in the big square.
Step-by-step explanation:
To solve the question about what percent is represented by the shaded area, we need to visualize the 'big square' mentioned in the question. Since there are no visual cues, we have to rely on the descriptions given. However, the information provided does not give a clear representation of the shaded area. Therefore, we need additional details to determine the correct percentage, whether it's 25%, 50%, 75%, or 100%. In general, calculating percents involves comparing the shaded section to the whole square, each of which would represent 100 parts, and determining how many parts are shaded.