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2 Dimensional Shapes

Key Concepts

  • Different shapes.
  • Shapes into categories based on their attributes.

Shapes

We come across different shapes around us in day-to-day life. So, let us observe the below figure and recall the shapes: 

Name the different shapes in the picture given below. 

different shapes in the picture

Answer:  

  1. Circle  
  1. Square  
  1. Rectangle  
  1. Triangle  

Identify the different shapes and count them. 

different shapes

Answer:  

  • Number of circles: 4 
  • Number of triangles: 5  
  • Number of squares: 3  
  • Total number of shapes: 12 

2-Dimensional Shapes  

  1. Triangle  
  1. Quadrilateral  
  1. Pentagon  
  1. Hexagon 

Triangle & Its Attributes 

A triangle has 3 sides and 3 vertices.  

Triangle & Its Attributes 

Some more different types of triangles are given below:  

different types of triangles

Not triangles

These are the shapes which are not triangles.  

Not triangles

Quadrilateral & Its Attributes 

A quadrilateral has 4 sides and 4 vertices.  

Quadrilateral & Its Attributes 

Some more different types of quadrilaterals are given below:  

different types of quadrilaterals

Not quadrilaterals

These are the shapes which are not quadrilaterals.  

Not quadrilaterals

Pentagon, Hexagon & Their Attributes

Pentagon & its Attributes   

  • It has 5 sides.  
  • It has 5 vertices.  
Pentagon

Hexagon & Its Attributes

  • It has 6 sides.  
  • It has 6 vertices.  
Hexagon

Not pentagons and not hexagons:  

Below are the shapes which are not pentagons and hexagons.  

not pentagon and hexagon

Exercise

  • Name all the shapes used in the picture.
Name all the shapes used in the picture.
  • Observe the picture and find the number of circles, triangles, quadrilaterals, and pentagons.
Observe the picture and find the number of circles, triangles, quadrilaterals, and pentagons.
  • Find the total number of triangles in the picture.
Find the total number of triangles in the picture.
  • Name each shape. Find the number of sides and vertices.
Name each shape. Find the number of sides and vertices.
  • Identify the shape which is not a hexagon
Identify the shape which is not a hexagon
  • Connect all the dots to make shapes that have vertices. Name the shapes that you make.
Connect all the dots to make shapes that have vertices. Name the shapes that you make.

Concept Map

Concept Map

What we have learned

  • Recognizing different shapes.
  • Sorting shapes into categories of triangle, quadrilateral, pentagon, and hexagon based on their attributes

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