ECAT Mathematics Application of Trigonometry Online Test

Mathematics Application of Trigonometry MCQS Online Test

ECAT Math Application of Trigonometry Chapter Online Test

Total Questions: 45
Time Allowed: 20 Minutes
Total Marks: 45
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Math Application of Trigonometry Test

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1. If a, b, c are the sides of the triangle ABC, then s =

2. An angle below the horizontal line and line of sight is called

3. R =

4. A man of height 6 ft observes the top of a tower and the foot of the tower at angles of 45° and 30° of elevation and depression respectively. The height of the towers is

5. cot a/2 =

6. The area of a triangle with a = 300, b = 120, ϒ = 150° is

7. r₃ =

8. If you are looking someone on the ground from the op a hill, the angle formed is the

9. Circum radius of a circle is denoted by

10. If ∆ is the area of a triangle ABC, then ∆ =

11. At the top of a cliff 80 m high, the angle of depression of a boat is 12°. The distance of the boat from the cliff is

12. In ∆ ABC, a²+b²-c²/2ab is

13.

14.

15. AB is a vertical pole and C is its middle point. The end A is on the level ground and P is any point on the level ground other than A. the portion CB subtends and angle β at P. If AP:AB = 2:1 then β =

16. √rr₁r₂r₃ = ?

17. Which one is true?

18. A tree of 8 m high has the shadow 6m in length, the angle of elevation of the sun at that moment is

19. Pythagorous theorem is solve

20. The x – center with respect to the vertex B is the point of intersection of the

21. 4R cos ½ a sin ½ β cos ½ ϒ =

22. An airplane flying at a height of 300 meters above the ground passes vertically above another place at an instant when the angle of elevation of the two planes from the same point on the ground are 60° and 45° respectively. Then the height of the lower plane from the ground is (in meters).

23.

24. If β = 52°,ϒ = 89°35’, a = 89.35 in a triangle ABC, then

25. 4 R sin a/2 sin β/2 sin ϒ/2 =


 

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