You are viewing our Forum Archives. To view or take place in current topics click here.
how do you find the diameter of a cylinder knowing...
Posted:
how do you find the diameter of a cylinder knowing...Posted:
Status: Offline
Joined: Oct 13, 201113Year Member
Posts: 366
Reputation Power: 15
Status: Offline
Joined: Oct 13, 201113Year Member
Posts: 366
Reputation Power: 15
That the height is 25cm and the volume is 3litres?
#2. Posted:
Status: Offline
Joined: Oct 14, 201212Year Member
Posts: 589
Reputation Power: 23
Is this your math homework by any chance?
HaHaHa
You should maybe listen next math lesson ;)
HaHaHa
You should maybe listen next math lesson ;)
- 2useful
- 2not useful
#3. Posted:
Status: Offline
Joined: Nov 21, 201311Year Member
Posts: 5,491
Reputation Power: 283
Status: Offline
Joined: Nov 21, 201311Year Member
Posts: 5,491
Reputation Power: 283
Using the formula:
Volume=pi*(r^2)*height
so r=sqrt(volume/(pi*height))
and 2r=diamteter.
so d=2*sqrt(volume/(pi*height))
d=2*sqrt(3/3.14159...*25)
plug the numbers in you get diameter.
This website is something you might find useful
[ Register or Signin to view external links. ]
Last edited by TSNYC ; edited 4 times in total
Volume=pi*(r^2)*height
so r=sqrt(volume/(pi*height))
and 2r=diamteter.
so d=2*sqrt(volume/(pi*height))
d=2*sqrt(3/3.14159...*25)
plug the numbers in you get diameter.
This website is something you might find useful
[ Register or Signin to view external links. ]
Last edited by TSNYC ; edited 4 times in total
- 3useful
- 0not useful
#4. Posted:
Status: Offline
Joined: Mar 08, 201212Year Member
Posts: 1,573
Reputation Power: 63
Status: Offline
Joined: Mar 08, 201212Year Member
Posts: 1,573
Reputation Power: 63
Could you not change the subject of the formula?
V=Pi*R*R*H
R*R=......
V=Pi*R*R*H
R*R=......
- 0useful
- 1not useful
#5. Posted:
Status: Offline
Joined: Aug 09, 200915Year Member
Posts: 1,005
Reputation Power: 67
V=BH Your Volume is 3 and your hieght is 25cm, 3=Base x 25cm simple.
- 0useful
- 0not useful
#6. Posted:
Status: Offline
Joined: Jun 07, 201113Year Member
Posts: 675
Reputation Power: 26
TSNYC wrote Using the formula:
Volume=pi*(r^2)*height
so r=sqrt(volume/(pi*height))
and 2r=diamteter.
so d=2*sqrt(volume/(pi*height))
d=2*sqrt(3/3.14159...*0.25) since 25cm=0.25m
what this dude said bbn) oh and good luck
- 0useful
- 3not useful
#7. Posted:
Status: Offline
Joined: Jun 08, 201311Year Member
Posts: 1,261
Reputation Power: 55
Status: Offline
Joined: Jun 08, 201311Year Member
Posts: 1,261
Reputation Power: 55
TSNYC wrote Using the formula:
Volume=pi*(r^2)*height
so r=sqrt(volume/(pi*height))
and 2r=diamteter.
so d=2*sqrt(volume/(pi*height))
d=2*sqrt(3/3.14159...*25)
plug the numbers in you get diameter.
This website is something you might find useful
[ Register or Signin to view external links. ]
That looks so complicated man ahaha.
- 0useful
- 0not useful
#8. Posted:
Status: Offline
Joined: Nov 21, 201311Year Member
Posts: 5,491
Reputation Power: 283
Status: Offline
Joined: Nov 21, 201311Year Member
Posts: 5,491
Reputation Power: 283
AP1 wroteTSNYC wrote Using the formula:
Volume=pi*(r^2)*height
so r=sqrt(volume/(pi*height))
and 2r=diamteter.
so d=2*sqrt(volume/(pi*height))
d=2*sqrt(3/3.14159...*25)
plug the numbers in you get diameter.
This website is something you might find useful
[ Register or Signin to view external links. ]
That looks so complicated man ahaha.
Not really.
Just rearranging a simple mathematical equation. Nothing more than something you'd do in GCSE Maths.
The derivation of the formula for volume is a lot more difficult as you need to use calculus.
- 1useful
- 0not useful
You are viewing our Forum Archives. To view or take place in current topics click here.