Question # 1

In a triangle if α > 45°, ß > 30° then Γ cannot be:

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90°

100°

120°

10°

1° is equal to:

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If the initial side of an angle is the positive x-axis and the vertex is at the origin, the angle is said to be in the _____________:

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initial position

finalposition

normalposition

standardposition

In circular system the angle is measured in:

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radians

degrees

degrees, minutes

degrees, seconds

If cosec Θ > 0 and cot Θ < 0, then terminal arm of the angle lies in:

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I

II

III

IV

The number of radius in the angle subtended by an arc of a circle at the center =

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radius × arc

radius - arc

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30°

45°

60°

75°

If sinΘ <0, cosΘ<0 then the terminal arm of the angle lies in quadrant:

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I

II

III

IV

If tan Θ > 0 and sin Θ < 0 then terminal arm of the angle lies in quadrant:

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I

II

III

IV

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To convert any angle in degrees into radians, we multiply the measure by:

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- 72° = ___________________:

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none of these

180° = _____________:

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π radians

The angle between 0° and 360° and co-terminal with - 620° is:

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100°

200°

300°

320°

The area of a sector of a circular region of radius r with length of the arc of the sector equal to s is-----------:

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rΘ

rs

(1 - cos²Θ) (1 + cot²Θ) =

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tan²Θ

0

1

-1

Which one is a quadrant angle ?

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60°

180°

120°

30°

To convert any angle in radians into degrees, we multiply the measure by:

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If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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