Figure this out and make a race with me RIGHT NOW

[MrCoolness 547]

If the volume of a cylinder is 864 cm^3 and the circumference is 58.4 cm, what is the surface area of a cylinder that has twice the diameter of the cylinder described earlier?

[Ichalvl 1752]

2

Reserving spot so I can edit it and be in first place

[MrCoolness 547]

2

Reserving spot so I can edit it and be in first place

 

denied

[Destin 1958]

about 2,264.19

actually this is wrong I'm pretty sure,

Edited April 30, 2014 by Destin

[MrCoolness 547]

Oops if anyone saw my last post LOL might be gg

[Fetterolf 33]

13778841926031.714

[Mimic 3307]

Circumference, Area and Volume are all related dimensionally by lengths. Circumference exists in one dimension, Area in two, and Volume in three. Dividing and multiplying lengths will essentially give you the unit you want.

 

1) Find radius of circle with Circumference (circumference = 2*pi*r) = 9.2946486765666876089028117809548

2) 2x radius is diameter

3) 2x diameter is new diameter = 37.178594706266750435611247123819, radius = 18.58929735313337521780562356191

4) Find height (of the original) using volume, area of a circle with circumference 58.4 can be found using the radius earlier: 9.2946486765666876089028117809548

5) V = A*h, h = V/A, h = 864/(pi*9.2946486765666876089028117809548^2) = 3.1834491141649246552257973859466

6) Surface area of a cylinder is the areas of everything added. Circumference times height gives the area of the "round" portion, and two areas of a circle with the radius earlier make up the "caps". Assuming the height is not changed; (SA = 2*pi*r*h + 2*pi*r^2) = 2543.05678738 ~= 2543.057cm^2

 

 

Otherwise use this.

SA = (2V/r) + (2*pi*r^2)

[waffles 811]

2543 cm²

[Destin 1958]

I forgot to find the new height of the cylinder when the diameter was doubled, and that fucked me by like 300 cm :C

[MrCoolness 547]

Circumference, Area and Volume are all related dimensionally by lengths. Circumference exists in one dimension, Area in two, and Volume in three. Dividing and multiplying lengths will essentially give you the unit you want.

 

1) Find radius of circle with Circumference (circumference = 2*pi*r) = 9.2946486765666876089028117809548

2) 2x radius is diameter

3) 2x diameter is new diameter = 37.178594706266750435611247123819, radius = 18.58929735313337521780562356191

4) Find height (of the original) using volume, area of a circle with circumference 58.4 can be found using the radius earlier: 9.2946486765666876089028117809548

5) V = A*h, h = V/A, h = 864/(pi*9.2946486765666876089028117809548^2) = 3.1834491141649246552257973859466

6) Surface area of a cylinder is the areas of everything added. Circumference times height gives the area of the "round" portion, and two areas of a circle with the radius earlier make up the "caps". Assuming the height is not changed; (SA = 2*pi*r*h + 2*pi*r^2) = 2543.05678738 ~= 2543.057cm^2

 

Lovely answer, you hit the hammer on the nail.

 

2543 cm²

The winner is Waffles!! Simply because Mr. Jacob above doesn't really need to work with me to make race, so congrats Waffles!!

[MrCoolness 547]

I forgot to find the new height of the cylinder when the diameter was doubled, and that fucked me by like 300 cm :C

 

Yes it did lol, I'm sorry destin <3

[Fetterolf 33]

it better be keldon warlord waffles

[Destin 1958]

Yes it did lol, I'm sorry destin <3

<3

[Siesan 1802]

Circumference, Area and Volume are all related dimensionally by lengths. Circumference exists in one dimension, Area in two, and Volume in three. Dividing and multiplying lengths will essentially give you the unit you want.

 

1) Find radius of circle with Circumference (circumference = 2*pi*r) = 9.2946486765666876089028117809548

2) 2x radius is diameter

3) 2x diameter is new diameter = 37.178594706266750435611247123819, radius = 18.58929735313337521780562356191

4) Find height (of the original) using volume, area of a circle with circumference 58.4 can be found using the radius earlier: 9.2946486765666876089028117809548

5) V = A*h, h = V/A, h = 864/(pi*9.2946486765666876089028117809548^2) = 3.1834491141649246552257973859466

6) Surface area of a cylinder is the areas of everything added. Circumference times height gives the area of the "round" portion, and two areas of a circle with the radius earlier make up the "caps". Assuming the height is not changed; (SA = 2*pi*r*h + 2*pi*r^2) = 2543.05678738 ~= 2543.057cm^2

 

 

Otherwise use this.

SA = (2V/r) + (2*pi*r^2)

 

oh mimic-sama, you're so smart and desu!!! ;_;'' Just like my japanese animes!!!!!

[skitt 1307]

haha, now prove that 3-sat is NP complete