Can you divide this circle in the picture into seven parts using just three straight lines?
Now try cutting the cake into eight equal sections with just three lines.
Hint: remember that the cake is 3-dimensional!
๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ฆ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ