Welcome to Trigonometry. The quiz will randomly run 20 questions from Trigonometry which you have to answer in 10 minutes.

After 10 minutes, your quiz will automatically be submitted and scored.

You can retake the quiz as many times as you want and a different set of questions will be given. The answers will also be randomly arrange.

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1.
The area of a sector of a circular region of radius r and the central angle of the sector θ radians is

2.
2700 mils is how many degrees?

3.
2.25 revolutions are how many degrees?

4.
A ladder 5 meter long leans on a wall and makes an angle of 30˚ with the horizontal. Find the vertical height from the top to the ground.

5.
If sin A=4/5 and A is in the second quadrant, sin B= 7/25 and B is in the first quadrant, find sin (A+B)

6.
Which of the following is true?

7.
If α,β,γ are the angles of a triangle ABC, then cos(α + β) =

13.
If arc tan x + arc tan 1/3 = π/4, find the value of x.

14.
In 30 minutes, the minutes hand of a clock turns through

15.
sin(α + β)sin(α – β) =

16.
If cotθ > 0 and sinθ < 0, then terminal arc of the angle lies in quadrant :

17.
Two cities whose longitudes are 20°E and 40°W on the equator are apart

18.
In 30 minutes, the hours hand of a clock turns through

20.
sin(α + β) + sin(α – β)/cos(α + β) + cos(α – β) =

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