Class 4 Maths - WEST-BENGAL
Shapes Around Us
In the Chapter Shapes Around Us, Class 4 West Bengal Board (WBBSE) students explore basic 2D and 3D geometric shapes that we see in everyday life. Students learn to identify, draw, and count the sides, corners, and faces of various objects like triangles, squares, rectangles, circles, cubes, cylinders, and spheres. This chapter builds a strong foundation in geometry, helping young learners understand spatial relationships and properties of shapes, which is crucial for scoring high in the geometry section of their school examinations.
Start Learning FreeKey Concepts
Point
A point is a simple dot that gives us an exact position or location and has no length or width.
Line and Line Segment
A line goes on endlessly in both directions, while a line segment is a straight line with two fixed end points.
Plane Shapes (2D Shapes)
Shapes like squares, rectangles, triangles, and circles have only two dimensions, length and breadth, and are completely flat.
Solid Shapes (3D Shapes)
Shapes like cubes, cuboids, cylinders, cones, and spheres have three dimensions: length, breadth, and height.
Faces, Edges, and Corners
Solid shapes have flat surfaces called faces, lines where faces meet called edges, and points where edges meet called corners or vertices.
Important Formulas
Board Exam Info
In the West Bengal Board (WBBSE) Class 4 Mathematics examinations, this chapter typically carries around 5 to 10 marks. Common question types include matching shapes with their daily-life objects, counting the number of sides and corners of given 2D figures, and identifying faces, edges, and corners of 3D solid objects.
Frequently Asked Questions
What is the difference between a square and a rectangle?
A square has 4 equal sides, whereas a rectangle only has its opposite sides equal.
Does a circle have any corners?
No, a circle is a curved shape and has zero sides and zero corners.
How many faces does a brick or a cuboid have?
A cuboid has 6 flat faces.
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