How did the area of the illuminated part change with a successive increase in the angle of incidence of rays

How did the area of the illuminated part change with a successive increase in the angle of incidence of rays on the surface of a cardboard square without a cut?

As the angle of incidence increased, the area of the consecrated space in the square increased.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.