Jake
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Registered: 24th Jan 05
User status: Offline
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How would I work out the diagonal measurement(Red line) on the picture i made below(measurements are in meters)? Would make my life so much easier if i knew this!
cheers
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AlexSXI
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Registered: 10th Jan 08
Location: Colchester, Essex
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Isn't that just 5m
In the 3,4,5 method??
I could be very wrong though.
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Nath
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Registered: 3rd Apr 02
Location: MK
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I did this at school but have forgotten
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Chrissy
Premium Member
Registered: 28th Jan 06
Location: Sunny Glasgow Drives: Astra J
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Use Pythagoras
>>>> Chris <<<<
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Jake
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Registered: 24th Jan 05
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ok. that was a simple measurement. How about if it was 3.5x5.2m
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Kurt
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Registered: 23rd Oct 05
Location: Hi
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http://www.qub.ac.uk/keyskills/WN/Numeracytriangles.html#saright
quote:
In a right-angled triangle, what is the length of side c if a = 3 and b = 4?
Given a2 + b2 = c2
so 32 + 42 = c2
9 + 16 = c2
25 = c2
c=Ö25
So c = 5
[Edited on 18-02-2010 by Kurt]
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JonnyJ
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Registered: 23rd Sep 05
Location: Scotchland
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quote: Originally posted by will_doyle
I put a ruler against the screen and it is 11.5cm
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Chrissy
Premium Member
Registered: 28th Jan 06
Location: Sunny Glasgow Drives: Astra J
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its (c squared)=(a squared)+(b squared)
Then find the route of c squared..
>>>> Chris <<<<
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Dom
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Registered: 13th Sep 03
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SquareRoot(x²+y²)
It's basic pythagoras
edit - in your example, you would square root 3.5²+5.2m²
[Edited on 18-02-2010 by Dom]
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adiohead
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Registered: 28th Sep 01
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c = 5
a2 + b2 = c2
GOD DAMN BEATEN TO IT BY LOADS OF OTHERS :@
[Edited on 18-02-2010 by adiohead]
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Jake
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Registered: 24th Jan 05
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cheers lads. Probably save us 10minutes of fucking about with that equation!
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Colin
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Registered: 4th Apr 02
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Its just a 3-4-5 triangle.....you learn that in Primary 3 or something, there's no calculation to do!!
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Jake
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Registered: 24th Jan 05
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i was looking for a calculation that i can use with any measurement. It's sorted
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Hammer
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Registered: 11th Feb 04
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The 3, 4, 5 triangle is the basic model for a right angled triangle in school. For any other triangle with different sides it's the square of the hypotenuse (the length directly across from the right angle) is equal to the sum of the square of the other 2 sides.
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AlexSXI
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Registered: 10th Jan 08
Location: Colchester, Essex
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Yay! I was right Thank fook as i use maths at work all the time
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cpcrampton
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Registered: 16th Feb 07
Location: Stirling
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I find it quite hard to believe you had to ask this question.
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Jake
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Registered: 24th Jan 05
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yes thankyou im thick as shit. we use the 345 method to check if something is square but for setting out i wanted to know a simple equation we can do on our phone calcs
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x14xe sport
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Registered: 27th Apr 09
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quote: Originally posted by AlexSXI
Isn't that just 5m
In the 3,4,5 method??
I could be very wrong though.
correct, good trick for squaring things up
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AlunJ
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Registered: 3rd Apr 07
Location: Newport
User status: Offline
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quote: Originally posted by JonnyJ
quote: Originally posted by will_doyle
I put a ruler against the screen and it is 11.5cm
it's 12cm on mine
[Edited on 18-02-2010 by AlunJ]
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BlueCorsa
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Registered: 14th Jan 04
Location: Midlands Drives: MB SLK250 CDI
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quote: Originally posted by JonnyJ
quote: Originally posted by will_doyle
I put a ruler against the screen and it is 11.5cm
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