Class 3 Maths - CBSE

Fun with Shapes

In the Class 3 CBSE chapter Fun with Shapes, students explore basic 2D and 3D shapes like circles, rectangles, squares, triangles, cylinders, and cubes. They learn to identify these shapes by counting their sides, corners, and faces. This chapter builds a strong foundation in geometry, helping students recognize patterns and symmetry in the world around them. For CBSE exams, questions from this chapter test observational skills and basic property identification, carrying about 5 to 8 marks in the term assessments. Mastering these concepts is essential for scoring well in geometry.

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Key Concepts

Square

A flat shape with 4 equal straight sides and 4 corners.

Rectangle

A flat shape with 4 straight sides where opposite sides are equal, and 4 corners.

Triangle

A flat shape that has 3 straight sides and 3 corners.

Circle

A round flat shape that has no straight sides and zero corners.

Cube

A solid 3D shape with 6 equal flat faces, 12 edges, and 8 corners, like a dice.

Important Formulas

Square: Number of sides = 4, Number of corners = 4
Rectangle: Number of sides = 4, Number of corners = 4
Triangle: Number of sides = 3, Number of corners = 3
Circle: Number of sides = 0, Number of corners = 0
Cube: Number of faces = 6, Number of edges = 12, Number of corners = 8

Board Exam Info

In CBSE Class 3 Mathematics, this chapter typically carries around 5 to 8 marks. Common question types include matching shapes to real-life objects, counting the number of sides and corners in a given figure, and filling in the blanks about shape properties.

Frequently Asked Questions

Does a circle have any corners?

No, a circle is completely round and has zero corners and zero straight sides.

What is the difference between a square and a rectangle?

A square has 4 equal sides, while a rectangle only has its opposite sides equal to each other.

What is a 3D shape?

A 3D shape is a solid shape that takes up space and has thickness, like a box or a ball, unlike flat 2D shapes.

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