The document is a math worksheet on tangrams that contains 12 questions about the properties and relative areas of the 7 tangram pieces. It asks students to identify how many pieces there are, their shapes, which have equal areas, and ratios of areas between the pieces. The conclusion expresses the areas of the pieces relative to setting the area of piece 3 to 1.

1. M20201 the first semester of the 2010 academic year SAMUTPRAKAN SCHOOL
Name ……………………………………….…………….. Class ………………….. No ……….
1.3 Tangram
Direction: Answer the Question.
1. How many pieces of tangram? ........................................................................................
2. Which pieces are right angle triangles? ……………………………………………………..
3. Which pieces are square? …………………………………………………………………….
4. Which pieces are parallelogram? ……………………………………….……………………
5. Which pieces have equal area? ………………………………………………………………
6. How many area of piece 1 per area of total ? ……………………………………………….
7. How many area of piece 7 per area of piece 1 ? …………………………………………..
8. How many area of piece 7 per area of total ? ……………………………………………….
9. How many area of piece 3 per area of piece 4 ? …………………………………………..
10. How many area of piece 3 per area of piece 6 ? …………………………………………
11. How many area of piece 4 per area of piece 6 ? …………………………………………
12. If area of piece 1 equal to 4, What is area of total? ……………………………………….
Conclusion
Let area of piece 3 equal to 1, so you will get area of each piece equal to
Piece 1 : Piece 2 : Piece 3 : Piece 4 : Piece 5 : Piece 6 : Piece 7
= .….. : .…… : 1 : ..….. : ..….. : …… : .……
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2. M20201 the first semester of the 2010 academic year SAMUTPRAKAN SCHOOL
Name ……………………………………….…………….. Class ………………….. No ……….
1.3 Tangram
Direction: Answer the Question.
1. How many pieces of tangram? (7 pieces)
2. Which pieces are right angle triangles? (1, 2, 3, 5, 7)
3. Which pieces are square? (4)
4. Which pieces are parallelogram? (6)
5. Which pieces have equal area?
(piece 1 = piece 2, piece 3 = piece 5, piece 4 = piece 6 = piece 7)
6. How many area of piece 1 per area of total ? ( 1 : 4 )
7. How many area of piece 7 per area of piece 1 ? ( 1 : 2 )
8. How many area of piece 7 per area of total ? ( 1 : 8 )
9. How many area of piece 3 per area of piece 4 ? ( 1 : 2 )
10. How many area of piece 3 per area of piece 6 ? ( 1 : 2 )
11. How many area of piece 4 per area of piece 6 ? ( 1 : 1 )
12. If area of piece 1 equal to 4, What is area of total? (16)
Conclusion
Let area of piece 3 equal to 1, so you will get area of each piece equal to
Piece 1 : Piece 2 : Piece 3 : Piece 4 : Piece 5 : Piece 6 : Piece 7
= 4 : 4 : 1 : 2 : 1 : 2 : 2
PRODUCE BY TASANEE RATANAWIJITR