Exercises 2-5: if the figure has rotational symmetry, find the smallest angle of rotation that makes the image identical to the original figure.

5.

Step-by-step explanation:

If the figure has rotational symmetry, section of the figure and look directly across from a section. the sections will be identical.

details

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!