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Path Angle Problems in Geometry – Must Know Concepts

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Path Angle Problems in Geometry – Must Know Concepts

Path Angle Problems in Geometry – Must Know Concepts

🚶 Path Problems in Geometry (Triangles) – CAT/XAT Level Concepts

🔹 Concept of Path Problems in Triangle

When a person or object traverses equal paths along the sides of a triangle and returns to the starting point (or ends at a symmetric location), we apply the Path Angle Closure Formula:

Angle at vertex=180nwhere n=number of equal segments

Path Angle 3 Segments

Here, AB=BC=CA, so n=3A=60

🔹 Concept Applied with 5 Equal Paths

Let’s break triangle ABC into 5 equal segments and apply:

A=1805=36

Path 5 segments

🔹 Advanced Case: 7 and 9 Equal Paths

If a triangle is divided into 7 or 9 equal segments (symmetric routes), then the angle at the origin becomes:

  • A=180725.71
  • A=1809=20
Path 7 segments
Path 9 segments

🧠 Applied Angle Deduction Using Path Concept

Given 5 equal paths in triangle ABC, angle at A is 36. What is x in the setup where:

5x=180x=36

Path Angle x=36

🔍 7-Segment Full Angle Allocation

In this triangle, we see angle divisions done using equal paths, and the total rotation follows:

7x=180x=25.71

7 Segment Path Explained

📏 Highest Level Path Geometry – 9 Segment Distribution

Now, triangle is broken into 9 equal segments. Each internal corner angle is x=20. Beautiful path symmetry!

9 Segment Path Flow

🌟 Bonus Concept: Isosceles Triangle Angle Deduction

In triangle ABC, if two isosceles triangles are formed on same base, angle at apex θ can be found using:

D=1802θ

Isosceles Angle Deduction

🎯 Level 3: Two Concentric Circles – Angle in Triangle

Angle at center BOD?

Concentric Circles Problem
🔽 Show Final Answer & Work
Concentric Circle Solution

BOD=1802x=180100=80

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