Ask
your own question, for FREE!
Mathematics
15 Online
OpenStudy (moldybubblegum11):
I need help with diameter.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (moldybubblegum11):
OpenStudy (moldybubblegum11):
sorry it took so long.
Vocaloid (vocaloid):
hint:
circumference = pi * d
if 28 pi = pi * d
what is d?
ILovePuppiesLol (ilovepuppieslol):
do you know the formula for circumference of a circle?
ILovePuppiesLol (ilovepuppieslol):
alright @Vocaloid can help u
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (moldybubblegum11):
d = diameter right?
Vocaloid (vocaloid):
yes, but what number does that equal to?
OpenStudy (moldybubblegum11):
if the circumference is 28 than the diameter should be 14.
Vocaloid (vocaloid):
think carefully
Vocaloid (vocaloid):
circumference = pi * diameter
28 * pi = diameter * pi
what is diameter?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (moldybubblegum11):
87.96452?
Vocaloid (vocaloid):
hint: cross out pi on both sides
Vocaloid (vocaloid):
|dw:1480615403008:dw|
Vocaloid (vocaloid):
|dw:1480615408722:dw|
Vocaloid (vocaloid):
what is the diameter?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (moldybubblegum11):
28? ;-;
Vocaloid (vocaloid):
good job!
OpenStudy (moldybubblegum11):
im sorry
Vocaloid (vocaloid):
(nah don't apologize it's cool)
if diameter = 28, what's the radius?
OpenStudy (moldybubblegum11):
14
Join the QuestionCove community and study together with friends!
Sign Up
Vocaloid (vocaloid):
good job! that's your answer for part 1
part 2 is the same thing, except with 32 pi instead of 28 pi. do you think you can give it a go?
OpenStudy (moldybubblegum11):
yes.
Vocaloid (vocaloid):
cool lemme know what you get
OpenStudy (moldybubblegum11):
d = 32
r = 16
Vocaloid (vocaloid):
perfect!
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!