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Sunny_sXe [5.5K]
3 years ago
10

Arc AB is One-sixth of the circumference of a circle. What is the radian measure of the central angle? StartFraction pi over 6 E

ndFraction StartFraction pi Over 3 EndFraction StartFraction 2 pi Over 3 EndFraction StartFraction 5 pi Over 6 EndFraction

Mathematics
2 answers:
kakasveta [241]3 years ago
7 0

The radian measure of the central angle is π/3 radian

<h3>Further explanation</h3>

The basic formula that need to be recalled is:

Circular Area = π x R²

Circle Circumference = 2 x π x R

where:

<em>R = radius of circle</em>

\texttt{ }

The area of sector:

\text{Area of Sector} = \frac{\text{Central Angle}}{2 \pi} \times \text{Area of Circle}

The length of arc:

\text{Length of Arc} = \frac{\text{Central Angle}}{2 \pi} \times \text{Circumference of Circle}

Let us now tackle the problem!

\texttt{ }

This problem is about finding the central angle of circle.

\text{Length of Arc} = \frac{\text{Central Angle}}{2 \pi} \times \text{Circumference of Circle}

\frac{1}{6} \times \text{Circumference of Circle} = \frac{\text{Central Angle}}{2 \pi} \times \text{Circumference of Circle}

\frac{1}{6} = \frac{\text{Central Angle}}{2 \pi}

\text{Central Angle} = \frac{1}{6} \times {2 \pi}

\text{Central Angle} = \frac{1}{3} \times {\pi}

\text{Central Angle} = \frac{1}{3}\pi \texttt{ radian}

\texttt{ }

<h2>Conclusion:</h2>

The radian measure of the central angle is π/3 radian

\texttt{ }

<h3>Learn more</h3>
  • Calculate Angle in Triangle : brainly.com/question/12438587
  • Periodic Functions and Trigonometry : brainly.com/question/9718382
  • Trigonometry Formula : brainly.com/question/12668178

<h3>Answer details</h3>

Grade: College

Subject: Mathematics

Chapter: Trigonometry

Keywords: Sine , Cosine , Tangent , Opposite , Adjacent , Hypotenuse, Circle , Arc , Sector , Area, Central Angle , Angle

oksian1 [2.3K]3 years ago
5 0

Answer:

StartFraction pi Over 3 EndFraction

Step-by-step explanation:

we know that

The circumference of a circle subtends a central angle of 360 degrees or 2π radians

so

by proportion

Find out the central angle for an arc equal to One-sixth of the circumference of a circle

Let

x -----> the measure of the central angle in radians for an arc equal to One-sixth of the circumference

\frac{C}{2\pi}=\frac{(C/6)}{x}\\\\x=2\pi(C/6)/C\\\\x=\frac{2\pi}{6}

Simplify

x=\frac{\pi}{3}

therefore

StartFraction pi Over 3 EndFraction

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