Boards Concepts Booster Class 10 Some Applications of Trigonometry

1. BOARDS CONCEPTS BOOSTER SOME APPLICATIONS OF TRIGONOMETRY  Download Doubtnut Today Ques No. Question CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 1. INTRODUCTION 1 1. Application of trignometry in real life.  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 2 1. Explain the angle of elevation & depression with the help of diagram.  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 2. A circus artist is climbing a 20 m long rope ; which is tightly stretched and tied from the top of a vertical pole to the ground . Find the height of the pole if the angle made by the rope with the ground level is 30∘ 3  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY

2. 2. ANGLE OF ELEVATION AND DEPRESSIONS 4 3. From the top of the hill; the angle of depressions of two consecutive kilometre stones due east are found to be and 30∘ 45∘ . Find the height of the hill.  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 4. The shadow of a flag staff is 3 times as long as shadow of the flag-staff when the sunrays meet the ground at an angle of the ground at the time of longer shadow. 5 . Find the angle between the sun rays and 60∘  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 5. The angle of elevation of a cloud from a point 60m above a lake is angle of depression of the reflection of cloud in the lake is cloud. and the 30∘ 6 . Find the height of the 60∘  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 6. From the top of a building 15m high the angle of elevation of the top of tower is found to be . From the bottom of same building ; the angle of elevation of the top of the tower is found to be . Find the height of the tower and the distance between tower and building . 30∘ 7 60∘  Click to LEARN this concept/topic on Doubtnut

3. CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRYCONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 7. A man on a cliff observes a boat at an angle of depression of approaching the shore to the point immediately beneath the observer with a uniform speed . Six minutes later ; the angle of depressions of the boat is found to be Find the time taken by boat to reach the shore. which is 30∘ 8 . 60∘  Click to LEARN this concept/topic on Doubtnut CONCEPT FOR BOARDS || Chapter SOME APPLICATIONS OF TRIGONOMETRY 2. ANGLE OF ELEVATION AND DEPRESSIONS 8. The elevation of a tower at a Station A due north of it is and at a station B due α 9 ABsinα sinβ west of A is . Prove that the height of the tower is β √sinα− sinβ  Click to LEARN this concept/topic on Doubtnut  Download Doubtnut to Ask Any Math Question By just a click  Get A Video Solution For Free in Seconds  Doubtnut Has More Than 1 Lakh Video Solutions  Free Video Solutions of NCERT, RD Sharma, RS Aggarwal, Cengage (G.Tewani), Resonance DPP, Allen, Bansal, FIITJEE, Akash, Narayana, VidyaMandir  Download Doubtnut Today