1 |
|
30°
45°
60°
75°
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2 |
180° = _____________: |
π radians
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3 |
1° is equal to: |
|
4 |
1 radian is equal to: |
180°
none of these
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5 |
To convert any angle in radians into degrees, we multiply the measure by: |
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6 |
To convert any angle in degrees into radians, we multiply the measure by: |
|
7 |
The number of radius in the angle subtended by an arc of a circle at the center = |
radius × arc
radius - arc
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8 |
|
|
9 |
|
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10 |
- 72° = ___________________: |
none of these
|
11 |
The angle between 0° and 360° and co-terminal with - 620° is: |
100°
200°
300°
320°
|
12 |
The quadrant of an angle Θ is determined by its: |
sign
value
ratio
magnitude
|
13 |
The direction of an angle Θ is determined by its: |
value
magnitude
ratio
sign
|
14 |
If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then: |
s = rα
s = r + α
none of these
|
15 |
In a circle of radius r, an arc of length kr will subtend in angle of __________ radians at the center: |
s
k
r
Θ
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16 |
The area of a sector of a circular region of radius r with length of the arc of the sector equal to s is-----------: |
rΘ
rs
|
17 |
In circular system the angle is measured in: |
radians
degrees
degrees, minutes
degrees, seconds
|
18 |
The system of measurement in which the angle is measured in degrees, and its sub-units, minutes and seconds is called the: |
circular system
sexagesimal system
decimal system
degree system
|
19 |
In binomial expansion (a+b)n, n is positive integer the sum of coefficients equals: |
none of these
|
20 |
In binomial expansion of (a+b)n, n is positive integer the sum of even coefficients equals: |
none of these
|