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Class 10 Maths Chapter 9 Some Applications Of Trigonometry Quiz 3 (19 MCQs)

Quiz Instructions

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1. SinA = CosA for what value of A?
2. The ..... of the point is viewed is the angle formed by the line of sight with the horizontal when the point being viewed is above the horizontal level
3. Which ratio is used to find the adjacent side in a right triangle?
4. If you are given the length of a hypotenuse and the length of an adjacent side, what trigonometry ratio could you use .
5. Find height of the tower if length of shadow = 10 m and sun's altitude = 45
6. The line drawn from the eye of an observer to the point in the object viewed by the observer is said to be
7. Which trig function equals opposite over hypotenuse?
8. What type of triangle is the context of our study of trigonometry?
9. Please select the correct solution tan$^{ 2 }$x-sec$^{ 2 }$x =$^{ }$
10. The ratio of the length of the side opposite of the angle to the length of the hypotenuse is the .....
11. The slide at the playground has a height of 6 feet. The base of the slide measured on the ground is 8 feet. What is the length of the slide?
12. In a Fourier series, the fundamental frequency is also known as Period.
13. A and B are two points. If the angle of elevation of B from A is 33$^\circ$, find the angle of depression of A from B.
14. You're given all three sides of a triangle. What do you use to find an angle?
15. The angle of elevation of the top a building from the foot of the tower is 30and the angle of elevation of the top of the tower from the foot of the building is 60. If the tower is 50 m high, then the height of the building is
16. The ratio in a right triangle of adjacent to hypotenuse is .....
17. The coefficients in a Fourier series represent:
18. Say 'TRUE' or 'FALSE'If both the height of the pole and the distance of the point of observation from the foot are increased by the same length, the angle of elevation of its top remains unchanged
19. The angle formed by the line of sight with the horizontal when the point being viewed is above the horizontal level is called:
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