## anonymous one year ago At the farmer's market, there is a scale that measures the weight of fruit and vegetables. The needle is 16 cm long, and it rotated 68° when Danielle placed six oranges on it. How far did the needle travel as it rotated?

1. mathstudent55

The length of an arc of a circle, s, is $$\Large s = \dfrac{n}{360^o} \times 2 \pi r$$ where n = the central angle of the arc, and r = radius

2. anonymous

How do u solve for anser

3. mathstudent55

$$\Large s = \dfrac{n}{360^o} \times 2 \pi r$$ $$\Large s = \dfrac{68^o}{360^o} \times 2 \pi (16~cm)$$ Just do the math.

4. anonymous

im confused

5. anonymous

i have four chocies

6. LynFran

let pi=3.142

7. mathstudent55

Do you have a calculator?

8. anonymous

|dw:1436156663230:dw|

9. anonymous

those r my chocies

10. anonymous

Which one would it be

11. mathstudent55

|dw:1436153218034:dw|

12. mathstudent55

Here you see how the calculation was simplified. |dw:1436153361695:dw|