Question

Question 1(Multiple Choice Worth 5 points)

Answer 1

Answer: $arc\ length =13.19cm$

Step-by-step explanation:

You need to use the following formula:

$arc\ length=r\theta$

Where "r" is the radius and $\theta$ is is the central angle of the arc in radians.

Assuming that that the angle $\frac{3\pi }{5}$ is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.

Therefore, you get:

$arc\ length=r\theta\\\\arc\ length= (7cm)(\frac{3\pi}{5})}\\\\arc\ length =13.19cm$