Pythagoras's theorem -- or the 3, 4, 5 rule

[V8Druid]

meant to put this one up a while ago, after I tripped over it one night ...
always sounds such a mouthful, trying to explain it to ppl ...
Pythagoras' theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle.
It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides - (the opposite and adjacent sides).
or
this is it in a simple diagram

 

[Lancs Lad]

meant to put this one up a while ago, after I tripped over it one night ...
always sounds such a mouthful, trying to explain it to ppl ...
Pythagoras' theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle.
It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides - (the opposite and adjacent sides).
or
this is it in a simple diagram
View attachment 46692

On a Friday night .. seriously

 

[V8Druid]

On a Friday night .. seriously

did say I'd been meaning to put it up for a while .... 's not my fault if you lot're half pissed by now

 

[V8Druid]

did say I'd been meaning to put it up for a while .... 's not my fault if you lot're half pissed completely hammered by now

edit

 

[Bri963]

I think someone’s hacked your account, Gra.

 

[Quattromike]

3,4,5 rule is so simple to use for squaring out but SOH CAH TOA is occasionally needed

 

[Brendan]

3,4,5 is handy and quick but I'll either use the easy square or just use the calculation
√((Length X length)+(width X width))
It's a bit late now but when I was buying a new laser I wanted to try and find one that could set corners but gave up and bought a spectra ll

 

[Smiffy]

3,4,5 is handy and quick but I'll either use the easy square or just use the calculation
√((Length X length)+(width X width))
It's a bit late now but when I was buying a new laser I wanted to try and find one that could set corners but gave up and bought a spectra ll

If by easy square you mean those big folding ones then they haven't got the best of tolerances. Some brickies set up all the dividing walls for a massive stable block using one out of laziness and had to rip out all internal walls

 

[TiltyShaun]

3,4,5 rule is so simple to use for squaring out but SOH CAH TOA is occasionally needed

But then I have to turn my phone sideways to get the full scientific calculator on the screen and the buttons are so small it gives me random big thumb answers!!

 

[DaveDCB]

If by easy square you mean those big folding ones then they haven't got the best of tolerances. Some brickies set up all the dividing walls for a massive stable block using one out of laziness and had to rip out all internal walls

They are pretty good to be fair, but if they aren’t flat they wobble everywhere.. you can soon loose afew mm eyeing up the string line etc.. abit of patience and we have no problem using them as a backup/checking device

 

[Quattromike]

But then I have to turn my phone sideways to get the full scientific calculator on the screen and the buttons are so small it gives me random big thumb answers!!

Get an app with right triangle solver. You just type in the two dimensions you know at it tells you the rest, all the angles and area

 

[Quattromike]

Geometryx: Geometry Calculator - Apps on Google Play

Formulas and calculations for 2D and 3D geometry. Quick & simple calculator.

play.google.com

This is the one I end up using quite a bit, geometryx. Easy to work out area's and volumes

 

[JerryRtilt]

Which app did Pythagoras use, must have been the best ?

 

[Gunners]

Always hated algebra. Just use GPS boys!!!

 

[doobin]

Always hated algebra. Just use GPS boys!!!

Yup, I got to Year 6 maths as a star pupil, the teacher introduced letters instead of numbers and I just hit a brick wall.

You don't need to know how it works, you just need to know which calculators you need to achieve the desired result in our trade. Let the geeks build our apps, they need us to fix their real world stuff because they can't even wire a plug. Fair trade.

 

[kabin man]

Anyone came across this device?
One of my colleagues has one and the day i was with him it was pretty impressive for small scale works.
Its an app you put on your phone and clip it to a device on a stick.It drew the area we surveyed in real time on the phone screen and he emailed it off..
It also marked up level changes on the drawing..

Discover Moasure

Moasure is a revolutionary new measuring technology that measures by sensing its position and movement in three dimensions. It uses inertial motion sensors to measure distance, height, level, angle, area and volume in a single measurement, simply by moving from one point to another.

moasure.co.uk

 

[doobin]

F

Anyone came across this device?
One of my colleagues has one and the day i was with him it was pretty impressive for small scale works.
Its an app you put on your phone and clip it to a device on a stick.It drew the area we surveyed in real time on the phone screen and he emailed it off..
It also marked up level changes on the drawing..

Discover Moasure

Moasure is a revolutionary new measuring technology that measures by sensing its position and movement in three dimensions. It uses inertial motion sensors to measure distance, height, level, angle, area and volume in a single measurement, simply by moving from one point to another.

moasure.co.uk

From my research they are not very accurate for anything more than a couple of measurements. As they work on dead reckoning via inertial sensors you have to be very careful how you handle them and cumulative errors can quickly get out of hand.

However, if other here have tried one and say that they DO work, then I'm all ears!

 

[kabin man]

F

From my research they are not very accurate for anything more than a couple of measurements. As they work on dead reckoning via inertial sensors you have to be very careful how you handle them and cumulative errors can quickly get out of hand.

However, if other here have tried one and say that they DO work, then I'm all ears!

Thats all its used by him for,just a quick survey so they have a slightly better sketch plan for all in office to look at possible layouts. Id have reservations using it for anything other than this.It is useful tho when its on a tablet screen and you can draw and add notes to it with the client.
Looks like we have half a clue

 

[Brendan]

Geometryx: Geometry Calculator - Apps on Google Play

Formulas and calculations for 2D and 3D geometry. Quick & simple calculator.

play.google.com

This is the one I end up using quite a bit, geometryx. Easy to work out area's and volumes

That app is smart

 

[Brendan]

Anyone came across this device?
One of my colleagues has one and the day i was with him it was pretty impressive for small scale works.
Its an app you put on your phone and clip it to a device on a stick.It drew the area we surveyed in real time on the phone screen and he emailed it off..
It also marked up level changes on the drawing..

Discover Moasure

Moasure is a revolutionary new measuring technology that measures by sensing its position and movement in three dimensions. It uses inertial motion sensors to measure distance, height, level, angle, area and volume in a single measurement, simply by moving from one point to another.

moasure.co.uk

Seen mixed results, seems you have to be very careful to get decent results