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What is a tangram congruent?

A tangram is an ancient Chinese puzzle. The seven tangram pieces are: two congruent small triangles (equal to each other in shape and size), two large congruent triangles, one medium sized triangle, one small square, and one paral- lelogram. These seven pieces form a complete tangram puzzle.

Can you make a triangle with tangrams?

The intermediate grades can use Tangram pieces to create squares, triangles, parallelograms, rectangles, and trapezoids.

How do tangrams work?

The simplest way is to let kids create their own complex shapes. But traditionally, tangrams are treated as puzzles. The player is shown a target shape in outline, so that the “seams” between the composite tans are concealed. Then the player attempts to recreate the shape using the seven pieces.

Why Tangram is called Tangram?

Tangram puzzles originated in Imperial China during the Tang Dynasty, they are thought to have travelled to Europe in the 19th century on trading ships. Tangram patterns are called in China “Chin-Chiao Pan” meaning intriguing seven piece puzzle. …

How many tangram puzzles are there?

Over 6500 different tangram problems have been created from 19th century texts alone, and the current number is ever-growing.

How many squares are there in 7 piece tangram?

16 squares

How do you make a tangram with 7 pieces?


  1. Step 1: With the pencil and ruler, follow the diagram and lay out the square of plywood.
  2. Step 2: Saw the plywood into the seven shapes shown. Sand the top, bottom and edges of each piece.
  3. Step 3: Apply the finish of your choice.
  4. Step 4: Your tangram is complete.

How do you draw a tangram?

  1. Step 1 : Draw a 4 or 8 inch square with your felt-tip pen.
  2. Step 2 : You need to draw a grid of smaller squares onto your current square .
  3. Step 3 : You now need to draw the lines that will mark out the edges of each tangram piece .
  4. Step 4 : Create another triangle in the top left corner.