Question

What is the order and angle of rotational symmetry of a regular octagon?

I think it is 8; 45°

or the other options are:

a. 8; 90°
b. 8; 45° (What I think it is!)
c. 4; 90°
d. 16; 45°

Am I right? Again, thank you! =)

Answer 1

yup..you're right.. 8;45

Answer 2

I agree with@stgreen

A figure has rotational symmetry if it can be rotated around a point so that resulting figures match the original figure. The point around which you rotate is called the center of rotation, and the smallest angle you need to turn is called the angle of rotation.

The number of positions a figure can be rotated to, without bringing in any changes to the way it looks originally, is called its Order of Rotational Symmetry.

http://www.emathematics.net/transformations.php?def=rotational

Answer 3

Sweeeeeet!