Provide two different degrees of rotation less than 75 degrees but greater than 0 degrees that will turn a regular dodecagon onto itself.

A regular dodecagon will turn onto itself after a ___ degree and ___ degree rotation.

1 answer

A regular dodecagon has 12 sides, and it will turn onto itself after any rotation that is a multiple of its internal angle, specifically \( \frac{360^\circ}{12} = 30^\circ \).

To find two different degrees of rotation less than 75 degrees but greater than 0 degrees that will turn a regular dodecagon onto itself, we can use the multiples of \( 30^\circ \).

The valid rotations are:

  • \( 30^\circ \) (1 × 30)
  • \( 60^\circ \) (2 × 30)

Therefore, a regular dodecagon will turn onto itself after a 30 degree and 60 degree rotation.