A Cartesian Puzzle
We have had the following solution from
Matthew, David and Jack at St. Nicolas School, Newbury. They
thought there was a problem with number 6 but there isn't!
Our solutions to the missing coordinates are:
- (2,11), (0,9), (2,7) ..............(4,9)
which had both rotational and line symmetry.
- (3,7), (3,4), (8,4) ..............(8,7)
which had both rotational and line symmetry.
- (18,3), (16,5), (12,5) ..............(10,3)
which had line symmetry.
- (13,12), (15,14), (12,17) ..............(10,15)
which had both rotational and line symmetry.
- (7,14), (6,11), (7,8) ..............(8,11)
which had both rotational and line symmetry.
- (15,9), (19,9), (16,11) ..............(12,11)
which had rotational symmetry.
- (11,3), (15,2), (16,6) ..............(12,7)
which had both rotational and line symmetry.
- (9,16), (2,9), (9,2) ..............(16,9)
which had both rotational and line symmetry.
We plotted these 8 sets of coordinates, which made a symmetrical
star.
