Case Study Questions Class 10 Maths Chapter 9 Some Applications of Trigonometry
CBSE Class 10 Case Study Questions Maths Some Applications of Trigonometry. Term 2 Important Case Study Questions for Class 10 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions Some Applications of Trigonometry.
At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.
CBSE Case Study Questions Class 10 Maths Some Applications of Trigonometry
Case Study – 1
A group of students of class X visited India gate on an education trip the teacher and students had interested in history as well. the narrate the India gate. Official name Delhi Memorial originally called All- India War Memorial, monumental sand stone arch in new Delhi dedicated to the troops of British India who died in wars fought between 1914 and 1919. The teacher also said that india gate, which is located at the eastern end of the Rajpath (formerly called the Kingsway) is about 138 feet (42 metres) in height.
[KVS Raipur 2021 – 22]
(i) if the altitude of the sun is at 600. then the height of the vertical tower that will cast a shadow of length 20 m is ?
Answer – 20√3m
(ii) The ratio of the length of a Rod and its shadow is 1:1. The angle of elevation of the sun is?
- a) 300
- b) 450
- c) 600
- d) 900
Answer – 450
(iii) The angle formed by the line of sight with the horizontal when the object viewed is below the horizontal level is
- a) corresponding angle
- b) angle of elevation
- c) angle of depression
- d) complete angle
Answer – a) corresponding angle
iv) What is the angle of elevation if they are standing at a distance of 42m away from the monument?
- a) 300
- b) 450
- c) 600
- d) 00
Answer – b) 450
CASE STUDY 2:
A Satellite flying at height h is watching the top of the two tallest mountains in Uttarakhand and Karnataka ,them being Nanda Devi (height 7,816m) and Mullayanagiri (height 1,930 m). The angles of depression from the satellite , to the top of Nanda Devi and Mullayanagiri are 30° and 60° respectively. If the distance between the peaks of two mountains is 1937 km , and the satellite is vertically above the midpoint of the distance between the two mountains.
[ CBSE Academic Question Paper ]
(1) The distance of the satellite from the top of Mullayanagiri is
(a) 1139.4 km
(b) 577.52 km
(c) 1937 km
(d) 1025.36 km
Answer: (c) 1937 km
(2) If a mile stone very far away from, makes 45 to the top of Mullanyangiri mountain .So, find the distance of this mile stone form the mountain.
(a) 1118.327 km
(b) 566.976 km
(c) 1937 km
(d) 1025.36 km
Answer: (c) 1937 km
(3) The distance of the satellite from the ground is
(a) 1139.4 km
(b) 577.52 km
(c) 1937 km
(d) 1025.36 km
Answer: (b) 577.52 km
(4) The distance of the satellite from the top of Nanda Devi is
(a) 1139.4 km
(b) 577.52 km
(c) 1937 km
(d) 1025.36 km
Answer: (a) 1139.4 km
(5) What is the angle of elevation if a man is standing at a distance of 7816m from Nanda Devi?
(a) 30°
(b) 45°
(c) 60°
(d) 0°
Answer: (b) 45°
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