Chapter 1: What is Long, What is Round?
📘 About this chapter
Shapes in the environment — 2D and 3D shapes, properties and recognition.
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Learning Objectives
By end of this chapter you will:
1
Understand 2D Shapes (Flat Shapes) and 3D Shapes (Solid Shapes)2
Apply 1 key formula3
Perform 1 practised experiment4
Define: 2D shape, 3D shape, Circle5
Solve NCERT exercises confidently🔗 Prerequisites
📌Basic mathematics from Class 1
📊 Chapter Stats
Difficulty🌱 Beginner
Est. Time47 min
Topics4
Formulas1
Experiments1
Progress0%
💡 Did You Know?
✦A sphere has the smallest surface area for a given volume — that is why bubbles are spherical
✦The triangle is the strongest shape — used in bridges and towers
✦Snowflakes always have 6-fold symmetry
✦A football is made of 12 pentagons and 20 hexagons
🔑 Key Terms(click any term for AI explanation)