Method 1:

1, first put a big triangle, right angle down.

2. Put a middle triangle on the right of the big triangle and turn right.

3. Put a small triangle on the right of the middle triangle, and make a right angle to it.

4. A parallelogram is placed under the triangle in the middle.

5. Put a square in the lower right corner of the small triangle.

6. Insert a small triangle under the parallelogram.

7. Finally, put a big triangle in the upper right corner.

Method 2:

1. Put the diamond on the far right first.

2. Place a medium-sized triangle above the diamond as the top.

3. Place a square in the lower left corner of the middle triangle so that it is opposite to the lower left corner of the triangle.

4. Fill the middle blank with isosceles triangle.

5. Fill in the blanks with isosceles triangles.

Method 3:

1. First overlap the right angles of the two largest right-angled triangles in the puzzle to form an isosceles right-angled triangle;

2. Next, put the square first, find the smallest two right-angled triangles, and overlap the right-angled side of the smallest right-angled triangle with the two opposite sides of the square to form a small isosceles trapezoid;

3. Overlap one side of parallelogram with the waist of small isosceles trapezoid to form another large isosceles trapezoid;

4. Then, put the last triangle on the upper bottom of the large isosceles trapezoid to form a second isosceles right triangle;

5. Finally, the right angles of two large isosceles right triangles can overlap.

Related information: 1. There are three ways to spell a triangle with a jigsaw puzzle: two large triangles and two small triangles, both of which can be made into squares. 2. Tangram is divided into two triangles, and two different right-angled sides overlap to form a parallelogram. 3. Tangram is divided into two triangles, and two identical right-angled sides overlap to form an isosceles right-angled triangle.