Questions 6, 7 | Pages 238–239 | Figure it out | Class 6 Maths | Chapter 9 Symmetry | Ganita Prakash

Описание: In this video, we solve Figure it Out Questions 6 and 7 from Pages 238–239 of Class 6 Ganita Prakash Chapter 9 – Symmetry, focusing on advanced reasoning in rotational and reflection symmetry using both abstract figures and real-life examples.

🔄 Question 6 – Is a Given Smallest Angle of Symmetry Possible?
We explore whether a figure can have rotational symmetry with the smallest angle of symmetry being:
a️⃣ 45°
b️⃣ 17°
Using logical reasoning and the idea that all angles of symmetry must divide 360° exactly, we determine which cases are possible and which are not.

🏛 Question 7 – Symmetry in the New Parliament Building
Using the picture of the new Parliament Building in Delhi, we analyse:
🔹 Whether the outer boundary shows reflection symmetry and how many lines it has
🔹 Whether it has rotational symmetry about its centre
🔹 The possible angles of rotational symmetry

This question beautifully connects geometry with real-life architecture, helping students see how symmetry appears in important structures.

💡 Concepts Explained:
🔹 Smallest angle of rotational symmetry
🔹 Why angles of symmetry must be factors of 360°
🔹 Reflection vs rotational symmetry
🔹 Applying symmetry concepts to real-world objects
🔹 Reasoning without heavy calculations

✨ By the end of this video, students will confidently decide whether a given angle of symmetry is possible and analyse symmetry in real-life shapes and buildings.

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