kymy_rose00 Group Title The diameter of Z is 5 in. What is its area in terms of pi? 2 years ago 2 years ago

1. robinfr93

Z is what?? A circle, sphere, cone,cylinder??

2. kymy_rose00

a circle

3. B.R.M

okay so we need to find an area of a circle with a diameter of 5 correct ?

4. kymy_rose00

yees

5. robinfr93

well first thing first.. Pi is the value you get when you divide the circumfrence of the circle by its diameter

6. B.R.M

yeah and we would need pie for our equation ?

7. robinfr93

12.5 pi will be the answer

8. robinfr93

srry

9. B.R.M

thank you @robinfr93

10. robinfr93

11. B.R.M

what equation did you use

12. kymy_rose00

I thought the answer was 20 pi

13. robinfr93

waitnah I'm right

14. robinfr93

its 12.5 pi alright

15. robinfr93

25 pi

16. robinfr93

FInal :P

17. B.R.M

i knew you were right lol

18. robinfr93

12.5 pi

19. robinfr93

20. robinfr93

so srry for multiple replies

21. kymy_rose00

Thats not one of the options so thats actually wrong

22. robinfr93

is it 6.25pi den??

23. robinfr93

is it kymy??

24. kymy_rose00

that seems right but so does 25 pi

25. robinfr93

see you can do it in two ways.. your give n the diameter which is 2r ryt??

26. robinfr93

so 2 * pi * r * r/2 = pi*r*r

27. robinfr93

ryt?? r = 5/2 so pi*25/4 will be the area

28. robinfr93

which equals to 6.25 pi

29. robinfr93

get it??

30. kymy_rose00

yes thank you

31. robinfr93