AnswersEAP-Geometry B CRIntroduction to Circles

Radian Measure Answers

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An angle measures Seven-ninths Pi radians. What is the degree measure of the angle?

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A
2.44°
B
140°
C
280°
D
439.6°
2
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rotations

Answer:

4

3

inches

Answer:

125.7

4

How many radians is -135°?

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Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
5

An angle measures 4.3 radians. To the nearest degree, what is the measure of the angle? degrees

Answer:

246

6

Compare an angle having a measure of 120° with that of an angle whose measure is StartFraction 5 pi Over 6 EndFraction radians. Explain your reasoning.

Question illustration
Answer:

120° is smaller than 5π/6 radians. Converting 120° to radians gives 2π/3 radians, and 2π/3 < 5π/6.

7

Which of the following did you include in your explanation?

A
To compare the angles, write them in terms of the same unit of measure.
B
Convert radians, or convert radians to .
Option B
C
is smaller than radians.
Option C
8

A circle has a radius of 10 inches. Find the approximate length of the arc intersected by a central angle of StartFraction 2 pi Over 3 EndFraction

Question illustration
A
6.67 inches
B
10.47 inches
C
20.94 inches
D
62.8 inches
9

What is the approximate length of arc s on the circle?

A
5.23 in.
B
41.87 in.
C
52.36 in.
D
104.67 in.
10

A circle has a central angle measuring 90° that intersects an arc of length 117.75 inches.Using 3.14 for Pi , what is the length of the radius of the circle? inches

Question illustration
Answer:

75

11

2 pi 4 pi 8 pi

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Option
Option A
B
Option
Option B
C
Option
Option C

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Radian Measure Answers — EAP-Geometry B CR