Скачать или смотреть Ex 11.3 | Q : 4 | CH : 11 | 1st Year Math | New PTB 2025 |

📘 Ex 11.3 | Q: 4 | Ch: 11 | 1st Year Math | PTB 2025

🎯 Topic: Applications of Trigonometry
🌳 Question: Two points P and Q are in line with a tree. The distance between P and Q is 30 meters. The angles of elevation to the top of the tree from P and Q are 12° and 15° respectively.
🔍 Goal: Find the height of the tree using trigonometric functions.

📚 Board: Punjab Textbook Board (PTB)
📅 Session: 2025
👨‍🏫 Class: 1st Year (11th Class)
🧮 Chapter 11: Trigonometric Applications
📂 Exercise: 11.3
🧩 Concepts Used: Angle of Elevation, Height & Distance, Tangent Function (tanθ)

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