## gabbyalicorn one year ago What is the approximate perimeter of the figure? A. 18.8 cm B. 10.71 cm C. 7.7 cm D. 4.71 cm

1. gabbyalicorn

2. gabbyalicorn

I don't know how to do this problem ;-;

3. gabbyalicorn

@MonKiwi

4. johnweldon1993

Hint* Perimeter of a circle = the circumference! $\large C = 2\pi r$

5. gabbyalicorn

B

6. gabbyalicorn

no A

7. gabbyalicorn

srry my typo mistake

8. johnweldon1993

So if we plug in the radius we would get the circumference for an ENTIRE circle of radius 3 And yes that WOULD be 18.8....however, notice we only have a quarter of a circle..so we need to divide this number by 4

9. gabbyalicorn

4.7

10. johnweldon1993

11. gabbyalicorn

Yay! Thank you! √

12. johnweldon1993

No problem!