Shapes and Patterns
CBSE · Class 5 · Mathematics
Summary of Shapes and Patterns for CBSE Class 5 Mathematics. Key concepts, important points, and chapter overview.
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Overview
Shapes can be joined, folded, measured, and repeated to make patterns. Some shapes fit together without gaps, while others leave spaces. Special flat shapes such as triangles, pentagons, hexagons, and octagons behave differently when they are placed around a point. Some quadrilaterals have equal adj
Key Concepts
Shapes that have equal sides
Shapes that have equal sides are called regular shapes. A regular pentagon has 5 equal sides, a regular hexagon has 6 equal sides, and a regular octag
Tessellation means covering a region without
Tessellation means covering a region without gaps or overlaps. Equilateral triangles tessellate, but regular pentagons and regular octagons do not tes
An equilateral triangle has all three
An equilateral triangle has all three sides equal and all angles equal. Regular triangles fitted around a point leave no gaps and no overlap.
An isosceles triangle has exactly 2
An isosceles triangle has exactly 2 equal sides and 2 equal angles. Such triangles can be formed by fitting 2 triangular pieces of a rhombus together.
A scalene triangle has no equal
A scalene triangle has no equal sides. It can be made by cutting an equilateral triangle in half.
Learning Objectives
- Identify regular shapes and their equal sides
- Tell which shapes tessellate and which do not
- Compare triangles, kites, parallelograms, rectangles, and rhombuses
- Recognize shapes made by folding, cutting, and joining paper pieces
- Understand circle-based designs, cube painting, and shape puzzles
Frequently Asked Questions
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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