Question 3, 4, 5 | Page 238 | Figure it Out | Class 6 Maths | Chapter 9 Symmetry | Ganita Prakash
Автор: Ganita Prakash with IITian Vivek Regmi
Загружено: 2026-01-08
Просмотров: 2043
Описание:
In this video, we solve Figure it Out Questions 3, 4, and 5 from Page 238 of Class 6 Ganita Prakash Chapter 9 – Symmetry.
These questions focus on deep reasoning about rotational symmetry, especially the smallest angle of symmetry and how all other angles are related to it.
🧠 Question 3 – Symmetry in Triangles & Quadrilaterals
We draw and analyse different figures to understand:
🔹 When a triangle can have multiple lines and angles of symmetry
🔹 How rotational symmetry and reflection symmetry can exist together or separately in triangles and quadrilaterals
📐 Question 4 – Smallest Angle of Symmetry (60° given)
If 60° is the smallest angle of symmetry, we find all the other possible angles of symmetry of the figure by reasoning through a full 360° rotation.
🔄 Question 5 – Given One Angle, Find the Smallest Angle
Here, 60° is an angle of symmetry, and the figure has two more angles smaller than 60°.
We carefully reason backward to find the smallest angle of symmetry, strengthening understanding of how symmetry angles are always factors of 360°.
💡 Concepts Explained:
🔹 Smallest angle of rotational symmetry
🔹 Relationship between angles of symmetry and 360°
🔹 Reasoning-based symmetry problems
🔹 Difference between “an angle of symmetry” and “smallest angle of symmetry”
🔹 Logical deduction without drawing exact figures
✨ By the end of this video, students will confidently solve advanced rotational symmetry questions, identify the smallest angle of symmetry, and understand how all symmetry angles are mathematically connected.
Class 6 Maths Symmetry, Ganita Prakash Class 6, Figure it Out Page 238, Rotational Symmetry Reasoning, Smallest Angle of Symmetry, Symmetry Angles Class 6, CBSE Class 6 Maths, NCERT Symmetry
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