What was the hidden message for the Hangman game? It has something to do with the Pythagorean Theorem

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Find the area of the regular hexagon if a side is 20 cm.

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)