Amplitude - It is the magnitude of an oscillation. In addition, it is also used to refer to Jacobi amplitude.
Period - The intervals where the periodic function recur.
Frequency - The number of occurrences within the given period of time.
Good luck :)
I assume you're talking about a regular hexagon, for which the answer is NO RIGHT ANGLES - they are all 120 degrees.
So the answer would be (x,y)=(11,9)
Alright, so you have to have heads and tails, as well as 3 spots each for each even number. Therefore, we need heads with 2 4 6 as well as tails with 2 4 6 (the third one down in the first picture)