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How to Make a Tangram Right Triangle

A tangram is a Chinese puzzle using seven differently-shaped pieces to create various forms, both mathematical and artistic. The shapes are cut from one large square and when placed in the right formation, re-create that square. Apart, the pieces include two large triangles, one medium and two small triangles, all of which are isosceles. The final two pieces are a medium-size parallelogram and a small square. All seven pieces can be arranged to form a single right triangle with one 90 degree angle.

Instructions

- 1
  Put the small square down first and set it to the bottom left corner.
- 2
  Place one of the smaller triangles on top of the square with the right angle to the bottom left. The left side will form a straight line going up.
- 3
  Place a large triangle on top of the small triangle, arranged in exactly the same way. The right angle will be in the bottom left corner; only the bottom left corner of the large triangle will be touching the top left corner of the small triangle.
- 4
  Slide the medium triangle between the small and large triangles. The longest side will be against the bottom of the large triangle.
- 5
  Fit the parallelogram against the square and medium triangle. A short side of the parallelogram will be against the right side of the square and a long side will be against the medium triangle.
- 6
  Insert the small triangle on the bottom of the parallelogram. The longest side of the small triangle will be against the bottom side of the parallelogram.
- 7
  Put the final large triangle piece on the bottom right side. Turn the longest side of the triangle to the upper right, angling 45 degrees towards the bottom right.

Jigsaw Puzzles