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In our day-to-day life, we observe these shapes in windows, doors, decorated tiles,
bridges, beehives, etc. If all the sides and all the angles of a polygon are equal, the

polygon is called a regular polygon; otherwise, it is called an irregular polygon.
regular polygons

Equilateral triangle Square Regular pentagon

Irregular polygons

Quadrilateral Irregular hexagon Scalene triangle

TAngrAM

It is an ancient puzzle that originated in China, consisting of seven shapes: two large

triangles, one medium triangle, two small triangles, one square and one parallelogram.
Using all these shapes, one can create any mathematical shape or creative figure.

Tangram shapes are very useful tools for learning mathematics,

especially concepts related to geometry and spatial understanding. 7 6
5
By rearranging the tangram pieces to create different shapes and
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figures, one can develop a better awareness of how shapes fit together
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in a space. Tangrams are a useful tool for teachers to demonstrate 2
geometric ideas like symmetry, patterns, and transformations.

Making Mathematical Shapes using Tangrams

Square Rectangle

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Geometry