A square is rotated about its center. Select all of the angles of rotation that will map the square onto itself.
45 degrees
60 degrees
90 degrees
120 degrees
180 degrees
270 degrees
THIS IS A MULTIPLE CHOICE

Since we are doing flips of a coin, we can agree that each flip is independent of all of the other.

The probability that a coin lands on heads is 1/2, just as the probability that a coin lands on tails is 1/2.

Since each event is independent, we take the probabilities of the events and multiply them together to get the overall probability:

P(H) = 1/2
P(T) = 1/2

So:

P(H, T, H, H, H) = (1/2) x (1/2) x (1/2) x (1/2) x (1/2) = 1/32

The overall probability is 1/32.