Question

A regular decagon is mapped onto itsslf everytime it is rotated by how many degrees

Answer 1

36° is correct.

Explanation:

The degree of rotational symmetry is equal to 360° divided by the number of sides of a regular polygon

360° ÷ 10 = 36°

Answer 2

A regular decagon is mapped onto itself every time it is rotated by 36°

Explanation:

A regular decagon means a polygon with 10 sides and all sides are equal.

Refer the given figure, if we rotate by 36° we will get same decagon.

So a regular decagon is mapped onto itself every time it is rotated by 36°