<
Trigonometry
<
Angles
Trigonometry/Angles/Quiz
1
Which formula gives the measure of an angle in radians?
s
=
r
θ
{\displaystyle s=r\theta }
θ
=
s
r
{\displaystyle \theta ={\frac {s}{r}}}
r
=
s
θ
{\displaystyle r={\frac {s}{\theta }}}
s
=
π
r
{\displaystyle s=\pi r}
2
Complete the sentence:
An angle is made of two
with a common
in a single
.
3
Which formula gives the arc length of an angle?
s
=
r
θ
{\displaystyle s=r\theta }
θ
=
s
r
{\displaystyle \theta ={\frac {s}{r}}}
r
=
s
θ
{\displaystyle r={\frac {s}{\theta }}}
s
=
π
r
{\displaystyle s=\pi r}
4
Fill in the blanks:
Angles consist of an
and a
ray, and an angle
.
5
Which formula gives the length of a radius of an angle?
s
=
r
θ
{\displaystyle s=r\theta }
θ
=
s
r
{\displaystyle \theta ={\frac {s}{r}}}
r
=
s
θ
{\displaystyle r={\frac {s}{\theta }}}
s
=
π
r
{\displaystyle s=\pi r}
6
What is the arclength of a 45 degree angle with radius 3?
7
The value of θ in an angle is independent of the size of the arc length since the radius is proportional in <math>\theta=\frac{s}{r}.
TRUE.
FALSE.
8
What is the measure of an angle with arclength 6 and radius 8?
9
What is the radius of a 60 degree angle with arclength 10?
10
Angles are considered dimensionless, since they are defined as the ratio of lengths.
TRUE.
FALSE.
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