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A circle has a radius of 10 inches. Find the approximate length of the arc intersected by a central angle of [tex]$\frac{2 \pi}{3}$[/tex].

A. 6.67 inches
B. 10.47 inches
C. 20.94 inches
D. 62.8 inches

Answer :

To find the arc length of a circle, you can use the formula:

[tex]\[ \text{Arc Length} = \text{Radius} \times \text{Central Angle (in radians)} \][/tex]

Let's break down the problem:

1. Identify the radius and central angle:
- The radius of the circle is given as 10 inches.
- The central angle is [tex]\(\frac{2\pi}{3}\)[/tex] radians.

2. Use the formula for arc length:
Plug the values into the formula:

[tex]\[ \text{Arc Length} = 10 \times \frac{2\pi}{3} \][/tex]

3. Calculate the result:
First, multiply the radius by the central angle:

[tex]\[ = 10 \times \frac{2\pi}{3} \][/tex]

Simplifying this calculation gives you:

[tex]\[ \approx 20.94 \text{ inches} \][/tex]

Therefore, the approximate length of the arc is 20.94 inches.

The correct option is 20.94 inches.

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Rewritten by : Jeany