Trigonometry/Angles/Quiz

< Trigonometry < Angles

1. Which formula gives the measure of an angle in radians?

s=r\theta
\theta=\frac{s}{r}
r=\frac{s}{\theta}
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\theta
\theta=\frac{s}{r}
r=\frac{s}{\theta}
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\theta
\theta=\frac{s}{r}
r=\frac{s}{\theta}
s=\pi r

6. What is the arclength of a 45 degree angle with radius 3?

3.14
1.41
2.12
4.24

7. The value of θ in an angle is independent of the size of the arc length since the radius is proportional in \theta=\frac{s}{r}.
TRUE.
FALSE.

8. What is the measure of an angle with arclength 6 and radius 8?

11
41
48
24

9. What is the radius of a 60 degree angle with arclength 10?

1.67
4.21
2.76
2.24

10. Angles are considered dimensionless, since they are defined as the ratio of lengths.

TRUE.
FALSE.

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