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Introduction to Trigonometry
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Sinθ equals to
1⁄cosecθ
1⁄secθ
1⁄tanθ
1⁄cosθ
Cosθ equals to
1⁄secθ
1⁄tanθ
1⁄cosecθ
1⁄cotθ
If length is 52 cm and θ is 45°, radius should be
66.21 cm
60 cm
56.7 cm
49 cm
Cotθ equals to
1⁄cosecθ
1⁄tanθ
1⁄secθ
1⁄cosθ
In an angle, common end point is known as
point of intersection
terminal side
vertex
initial side
Area of sector with radius ‘r’ is measured by
2r + θ
1⁄2r
2r⁄θ
1⁄2 × r²θ
Value of 240° into radians should be
3π⁄4
4π⁄3
π⁄6
π⁄4
Angles between 0° and 90° lies in
2nd quadrant
3rd quadrant
4th quadrant
1st quadrant
System in which angles are measured in radians is called
MKS system
sexagesimal system
CGS system
circular system
Union of two non-collinear rays with some common end point is called
vertex
degree
radius
Angle
We can divide circumference of a circle into
270 equal arcs
360 equal arcs
180 equal arcs
90 equal arcs
A part of circumference of a circle is called
sector
Segment
radius
arc
Cosec²θ - cot²θ equals to
tanθ
1
-1
π radians are equal to
90°
360°
270°
180°
Tanθ equals to
1⁄cotθ
1⁄secθ
1⁄cosθ
1⁄cosecθ
1 + cot²θ equals to
sec²θ
sin²θ
cosec²θ
cos²θ
If θ is 180° and radius is 4.9 cm, length should be
13.6 cm
16 cm
15.4 cm
10 cm
Value of 3π⁄4 into degrees should be
120°
135°
150°
90°
Cosecθ equals to
1⁄secθ
1⁄sinθ
1⁄cosθ
1⁄cotθ
2π radians are equal to
270°
90°
180°
360°
1
2
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