Question

3. Rectangle RECT is rotated 360° about the y-axis.
Find the surface area and volume of the resulting solid of revolution. Be sure to do the following:
• Indicate the type of solid that was formed and its key dimensions.
• State all formulas.
• Show all substitutions and work.
• Use appropriate units in your answers.
http://i57.tinypic.com/rm2n1l.png
Please help! im in need of help desperately

Answer 1

welcome to OpenStudy @underthestraswaiting! :)

Answer 2

Thanks :)

Answer 3

Im just stressed about this question. I have no idea how to do it and I need major help.

Answer 4

okay no problem! :)

Answer 5

Ive heard great things about this site so I thought I would give it a go.

Answer 6

yeah It's a good site. :)

Answer 7

lol did u post ur question on yahoo?

Answer 8

Yes

Answer 9

cause i think i found it >.<

Answer 10

You probably did, haha.

Answer 11

Under the name Snailer.

Answer 12

yes. This is a tougher question than i thought~ but that doesn't i'm not gonna help you ;-) I've got a few friends that could probably help you out! :)

Answer 13

Awesome! This is on the study guide for the test and this is due tomorrow and its literately to only question I do not know.

Answer 14

@*Insert Name Here* @Data_LG2 @satellite73 @e.mccormick

Answer 15

yeah thats not a problem! :) That's what we're here for to answer any of your questions you don't seem to understand

Answer 16

Yay! Geometry can get really confusing and tough at times.

Answer 17

yeah... i'm pretty good at that kinda stuff but when graphs are involved I kinda trip and it overwhelms me to finish the rest of the problem :P

Answer 18

@tester97

Answer 19

Hahah thats understandable!
Im good at volume and surface area. (I think everyone is. Its the easiest to do.) But this came up and I dont remember ever learning it.

Answer 20

@nincompoop @bibby

Answer 21

sorry idk >.<

Answer 22

i forgot how to maffs rite nao

Answer 23

Its okay :) We all do once and a while

Answer 24

Can anyone else help? this is due tomorrow and I am beginning to stress a bit.

Answer 25

not 1/4 full cylinder

Answer 26

?

Answer 27

For which part

Answer 28

the solid formed is cylinder

Answer 29

the first question

Answer 30

Okay so I should put 1/4 cylinder as the answer?

Answer 31

no i said full cylinder as it is 360 rotation sorry for the previous mistake
you can imagine and see

Answer 32

Oh okay.

Answer 33

full cylinder not 1/4

Answer 34

wh are the dimensions

Answer 35

where

Answer 36

What are the Key dimensions. Or is that the full cylinder bit. (Im sorry if I seem stupid >.<)

Answer 37

ok again
the solid formed is cylinder
and i need the length and breadth of rect

Answer 38

Length is 4 and H is 6. I believe.

Answer 39

http://tinypic.com/view.php?pic=rm2n1l&s=8#.Uwv0h_ldU7w

Answer 40

what is r in the figure

Answer 41

(0,3,5)

Answer 42

ok
you are wrong
breadth is 5
length is 6-3=3
take radius of the cylinder as 3
and height as 5
then find the volume etc

Answer 43

hope you got it now

Answer 44

What is the breadth

Answer 45

So 141cm

Answer 46

Oh my gosh. This makes sense now

Answer 47

breadth is 5cm

Answer 48

hahaha

Answer 49

ok friend

Answer 50

Thank you soooooooooo much!

Answer 51

no problem and good morning

Answer 52

I have the Same quesion so sorry, IDK :( But I migh find it somewhere else and ill let you know :)