Worked Example
Applied word problem 8
For Class 7 Mathematics, explain or solve a angle sum property of triangle question from the chapter "Triangles and Its Properties". Focus on applied word problem and show the working clearly.
Step-by-step solution path
- Read the topic idea: Angle Sum Property of Triangle.
- Recall the core explanation from the chapter: Properties of triangles, angle sum, exterior angles and Pythagoras theorem.
- Use the related formula "Exterior angle theorem" as the main tool while solving.
- Write the reasoning in simple school-level language before the final answer.
Final learning answer
This example is centred on Angle Sum Property of Triangle. A strong solution should identify the correct data, apply Exterior angle theorem, and explain each transition instead of jumping directly to the answer.