Find the missing coordinates which will form these eight
quadrilaterals. These coordinates themselves will then form a shape
with rotational and line symmetry.
A game for 2 players. Practises subtraction or other maths
A game for 2 people that can be played on line or with pens and paper. Combine your knowledege of coordinates with your skills of strategic thinking.
Here is a grid showing tangram pieces:
What are the coordinates of the yellow dots that mark out the tangram? (We've numbered them so you can refer to them easily.)
Try changing the position of the origin by clicking on another place in the grid.
What happens to the coordinates now?