Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #1 2013-11-20 06:14:51

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Measure length without bend ?

Suppose I have a pipe that is bent to a degree, measuring the length of the pipe from the top to the bottom at 11.76cm.  I want to know the length of the pipe as if there was no bend ?

Offline

## #2 2013-11-20 06:39:01

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

What do you mean by angle? What is the thickness of the pipe? What are the inside and outside diameters?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #3 2013-11-20 06:44:43

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

You also need the angle of the bend.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #4 2013-11-20 06:46:14

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

That is all the information I can retrieve.  The pipe is 11.76cm measuring from the top of the pipe to the bottom including the bend. I want the length of the pipe, as though the pipe is stretched out.

Last edited by SuperLynx (2013-11-20 06:46:56)

Offline

## #5 2013-11-20 06:47:54

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

You mean, direct distance from one end to the other?

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #6 2013-11-20 06:48:42

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

Top of the pipe to the bottom? What does that mean?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #7 2013-11-20 07:11:00

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

anonimnystefy wrote:

You mean, direct distance from one end to the other?

Direct Length.

The white is the pipe.  From Top > Bottom measured.

Offline

## #8 2013-11-20 07:13:02

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

Then you need at least the angle of the bend.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #9 2013-11-20 07:14:52

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

What if I don't have the angle, there is no other solution, I must have the angle ?

Offline

## #10 2013-11-20 07:21:08

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

Is that to scale?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #11 2013-11-20 07:28:08

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,840

### Re: Measure length without bend ?

See picture below.  Three very different lengths but all have the same top to bottom measurement.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

Offline

## #12 2013-11-20 14:40:07

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

The diameter is

.  If you really need the angle measurements, I'll get those numbers.  I'm really hoping there is a genius way to figure it out without finding out the length of the object, which includes pipe length followed by the angle of the bend measurements.

Offline

## #13 2013-11-20 15:46:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

I do not think that is helping enough.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #14 2013-11-20 15:49:48

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

Will it bend?

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #15 2013-11-20 16:11:16

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

The pipe? I guess it should. How does that help?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #16 2013-11-20 16:26:24

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

Dunno, maybe we should ask Bender.

I just got an idea. How about posting a picture of the pipe. We might be able to get the other measurements needed.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #17 2013-11-20 16:28:15

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

I asked him if that was to scale then I would just measure it. Since he is not providing any numbers a measurement would be better than a calculation.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #18 2013-11-20 16:31:20

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Measure length without bend ?

The picture above is a picture in a paint program, so my bet is that it is definitely not to scale. An actual picture would do just fine, though.

I am also wondering, what is the motivation behind this?

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #19 2013-11-20 16:33:01

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

### Re: Measure length without bend ?

I am not sure. But it also does not look like a pipe...

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Online

## #20 2013-11-20 17:52:01

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

The image is suppose to represent a pipe, use your imagination.  I gave the measurements from top to bottom, the top would be the top of the pipe as seen in the image, the bottom, obviously the bottom of the pipe.  Is there a formula to find out the length of the pipe as though the pipe did not have a bend, and was straight, or must the measurements of the bend of the pipe be known ?

Offline

## #21 2013-11-20 17:56:28

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,616
Website

### Re: Measure length without bend ?

The question seems to be unclear and the diagram is even more.

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

Offline

## #22 2013-11-20 18:03:48

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

I said the question in post #20 !

Offline

## #23 2013-11-20 18:13:56

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,616
Website

### Re: Measure length without bend ?

Does the pipe represent a chord? Yes?

Where did you get such a question from?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

Offline

## #24 2013-11-20 18:17:51

SuperLynx
Member
Registered: 2009-06-28
Posts: 335

### Re: Measure length without bend ?

A chord, where would you get such an idea from, it's a rough pipe, sketch.

Offline

## #25 2013-11-20 18:19:13

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,616
Website

### Re: Measure length without bend ?

sorry, I meant: Does the pipe represent an arc?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

Offline