Question 1, 2, 3, 4 | Page 170, 171 | Class 7 | Chapter 7 | A Tale of Three Intersecting Lines
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Question 1, 2, 3, 4 | Page 170, 171 | Class 7 | Chapter 7 | A Tale of Three Intersecting Lines
26 003 просмотра · 11 мес. назад
Maths with Vivek (iitian)
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26 003 просмотра · 11 мес. назад
In this video, we solve Figure it Out Questions 1, 2, 3 and 4 from Page 170 of Chapter 7 – A Tale of Three Intersecting Lines, Class 7 Ganita Prakash (CBSE).
These questions take students deeper into triangle construction, including altitudes, right-angled triangles, and exploring whether certain angle combinations are possible. Students also investigate whether equilateral and isosceles triangles can be constructed with right or obtuse angles.
📘 Figure it Out – Page 170
Question 1:
Construct triangle ABC with:
• BC = 5 cm
• AB = 6 cm
• CA = 5 cm
Then construct the altitude from A to BC.
Question 2:
Construct triangle TRY with:
• RY = 4 cm
• TR = 7 cm
• ∠R = 140°
Then construct the altitude from T to RY.
Question 3:
Construct a right-angled triangle ABC where:
• ∠B = 90°
• AC = 5 cm
How many different triangles can be made using these measurements?
(Explore all possible values of angles ∠A and ∠C.)
Question 4:
By actual construction, explore whether it is possible to draw:
• an equilateral triangle that is (i) right-angled or (ii) obtuse-angled
• an isosceles triangle that is (i) right-angled or (ii) obtuse-angled
▶ Constructing triangles from side and angle combinations
▶ Drawing altitudes to given sides
▶ Exploring uniqueness of triangles with right angles
▶ Understanding limitations of triangle types (right, obtuse, equilateral, isosceles)
▶ Strengthening construction accuracy and geometric reasoning
This video gives students hands-on experience with geometric constructions and helps them understand which triangle types are mathematically possible.
Playlist for Chapter 7 – A Tale of Three Intersecting Lines:
• A Tale of Three Intersecting Lines | Class...
Playlists for all Class 7 Maths Chapters:
Chapter 1 – Large Numbers Around Us
• Large Numbers Around Us | Class 7 | Chapte...
Chapter 2 – Arithmetic Expressions
https://www.youtube.com/playlist?list...
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Chapter 3 – A Peek Beyond the Point
• A Peak Beyond the Point | Chapter 3 | Clas...
Chapter 4 – Expressions Using Letter-Numbers
• Expressions Using Letter-Numbers | Chapter...
Chapter 5 – Parallel and Intersecting Lines
• Parallel & Intersecting Lines | Class 7 | ...
Chapter 6 – Number Play
• Number Play | Class 7 | Chapter 6 | Ganita...
Chapter 7 – A Tale of Three Intersecting Lines
• A Tale of Three Intersecting Lines | Class...
Chapter 8 – Working with Fractions (Coming soon)
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Class 7 Maths Chapter 7 Page 170
Altitude construction Class 7
Right-angled and obtuse-angled triangles Class 7
c7 ch7 page170 triangleconstructions ganitaprakash class7maths