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NCERT · Class 3 · Maths

Chapter 5: Shapes and Designs

Practice each question, then open the answer or worked solution.

TANGRAM

5 questions
Q1Written answer

How many triangles do you have in your set? Are all of them equal in size? Find out.

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Worked solution

There are 3 triangles in the given set, the triangles are named 1, 2 and 5. No all of them are not equal in size.

Q2Written answer

Use the two small triangles in the tangram set to get the following shapes:

Class 3 Maths Chapter 5 - 4

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Worked solution

Do as directed, using the triangles numbered 2 and 5.

Q3Written answer

Which two pieces of the tangram set are exactly same? Find out.

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Worked solution

The triangles 2 and 5 are exactly same.

Q4Written answer

Take pieces 4 and 5 from the set and find out on which side of the triangle you can join the other piece.

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Worked solution

We can join the piece numbered 4 on the slant side of the piece numbered 5.

Q5Written answer

Find matching sides among the following pairs of pieces.

a) Pieces 1 and 2

b) Pieces 2 and 4

c) Pieces 1 and 5

d) Pieces 2 and 5

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Worked solution

a) The longest side of 2 match with one of the short sides of 1.

b) The longest side of 2 match with the longest side of 4.

c) The longest side of 5 match with one of the short sides of 1.

d) The longest side of 2 match with the longest side of 5, the short side of 2 match with the short side of 5.