page763     Groups of permutations      Matthias Lorentzen...mattegrisenforlag.com

Look at the picture beneath, then scroll down to the question and click the correct Answer button.

Reflection (flip) over the perpendicular
bisectors of the sides 3-4 and 1-2

×

Right answer

Close the window and click for the next page...

Close

• or

Flip (reflection) over the diagonal 1-3

×

Wrong answer

Close the window and try once more...

Close

• Click here for the next page