Mathematics Class 10 Chapter 8: Application of Trigonometry
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Chapter summary
Chapter 8 of Mathematics for Class 10 is called "Application of Trigonometry". It covers 4 learning outcomes of the Federal Board syllabus. You will learn to: extend sine and cosine functions to angles between 90° and 180°; solve problems using the laws of sine, cosine and the area formulas for any triangle. Parhayi.com has 206 MCQs, 43 short questions and 22 long questions for this chapter.
Topics in this chapter
- Extend sine and cosine functions to angles between 90° and 180°
- Solve problems using the laws of sine, cosine and the area formulas for any triangle
- Solve simple trigonometric problems in three dimensions
- Apply concepts of trigonometry to real life world problems (such as video games, flight engineering, navigation, sound waves)
Sample questions
Try these questions from the chapter. The answers are for Premium students.
- A flagstaff is observed from a point P on the ground. The angle of elevation of its top is \(30^\circ\). If the distance between P and the foot of the flagstaff is 10 m, find the height of the flagstaff. (4 marks)
- Find all angles \(\theta\) with \(0^\circ\le\theta\le180^\circ\) for which \(\sin\theta=\dfrac{\sqrt3}2\). (3 marks)
- A triangular plot has two sides of 40 m and 55 m enclosing an angle of \(75^\circ\). Find its area and the cost of levelling it at Rs. 300 per m\(^2\) (nearest rupee, using the area to 1 decimal place). (3 marks)
What Premium gives you in this chapter
- 206 MCQs with answers and explanations
- 43 short questions with full answers
- 22 long questions with answers
- 11 Learn cards
- 9 Activities and games
- chapter tests that show your weak topics
Mathematics grows step by step. Read the rule, study one worked example, then solve similar questions yourself and check every step.
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