## Dallasb22 2 years ago A bicycle wheel with radius 26" rotates through an arc that measures 80°. What is the length of the arc of the tire that touched the ground?

1. Freyes

Find the circumference

2. Dallasb22

is this the same ?

3. Freyes

then multiply it by 80/360

4. Freyes

I told you how to do it now you should be able to do it

5. Dallasb22

104/9?

6. Dallasb22

or 11.5

7. Freyes

circumference is : $\Pi2r = \Pi d$

8. Freyes

$52 \Pi$

9. Dallasb22

Yes, i got that

10. Freyes

yeah but you forgot the pi

11. Dallasb22

And i did, 52pi*80/360

12. Dallasb22

Oh

13. Freyes

$52 \Pi \times \frac{ 80 }{ 360 }$

14. Freyes

see you know how to do it, just put the pi back in

15. Freyes

104/9 * pi

16. Freyes

that's it

17. Dallasb22

$104\pi/9$

18. Dallasb22

The pi times the whole set?

19. Freyes

20. Freyes

the 104 pi / 9

21. Dallasb22

Okay, thank you AGAIN.