[size=200][b]The symmetrical flower[/b][/size][br][br][color=#000000]A rotational symmetry is which matches an object with its rotation around a point called rotation centre. In rotation symmetry there are many angles that rotate the flower and make it matches with itself. All the angles that produce symmetry are multiple of an angle different from zero.[/color][br][br][color=#9900ff]1st. Activate the "Move" tool [icon]/images/ggb/toolbar/mode_move.png[/icon], place the rotation point in the centre of the flower that is where the symmetry centre is and look for the smallest angle different from zero that matches the flower with its transformation.[/color][br][br][color=#000000]If the point is in the centre of the flower and you find the smallest non-zero angle you will get 10 points automatically.[/color][br][br][color=#000000]The two curved arrows located in the upper right corner of the Graphics View allow you to reset the activity.[/color][br][color=#000000]If the activity is correct, you will get 10 points automatically.[/color]