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Old 25 October 2004, 07:10 PM
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Clarebabes
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Question Trigonometry Question



Whats the measurement from the part of the shower that goes in the corner, to the part that shower that the radius arrow points at?

Cheers
Old 25 October 2004, 07:16 PM
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ajm
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errr 550mm perhaps?
Old 25 October 2004, 07:20 PM
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NWMark
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If the arc is exactly a quarter of a circle (i.e. if you put four of them together youd get a perfect circle) then the measurement your after will be very close to 817mm ie the external measurement from the side.

or if its not a quarter of a circle id have a guess at 550 like it says.

Mark
Old 25 October 2004, 07:24 PM
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alcazar
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It can't be a PERFECT quadrant if the radius is different to the sides.


I'd say it would be 817 to the REAR/corner , and 800 to the internal corner.

Alcazar
Old 25 October 2004, 07:25 PM
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If the "radius" is 550mm, then the measurement you are after is 550mm, as ajm stated. The "radius" being the measurment from the centre of the quadrant to the outside, i.e half of the diameter. That drawing is a bit crap.

Proby
Old 25 October 2004, 07:26 PM
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NWMark
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Originally Posted by alcazar
It can't be a PERFECT quadrant if the radius is different to the sides.

I know that

but given the question in the first place i was presuming the 550 may be wrong or they may have wanted to know what it would be given it was a quarter of a circle.

Mark
Old 25 October 2004, 07:26 PM
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Clarebabes
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I understand the 817mm, but to draw an arc between must be longer than 550mm? In fact it has to be longer than 817??
Old 25 October 2004, 07:27 PM
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[QUOTE=Proby521]If the "radius" is 550mm, then the measurement you are after is 550mm, as ajm stated. The "radius" being the measurment from the centre of the quadrant to the outside(at THAT specific point), i.e half of the diameter. That drawing is a bit crap.

Proby
Old 25 October 2004, 07:29 PM
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ooppsss sorry people, managed to reply twice somehow, instead of editing the first post. Many apologies.

Proby.
Old 25 October 2004, 07:36 PM
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ajm
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lol I hadn't even noticed the side measurements!

If you look at this pic:-



I don't think that edge is a pure arc.... it looks like there are two straight parts each side of the curve that blend into an arc of 550mm radius, i.e. the centre of the arc is not in the corner, it must be much further forward.

So we can't answer your question without knowing the length of the straight parts of the arc side!

Edit: unless the straight bit is the 267mm?
Old 25 October 2004, 07:38 PM
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hades
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Note the 267mm bit on the left hand side. IMHO, I'd suggest that is a straight bit, i.e. not part of the arc. This means there is a 550mm radius arc, plus 267mm of straight section. 550+267 = 817.

Put it another way, the centre point from which the radius is drawn is 267 external (250 internal) in from each edge. This corresponds to square root of (267^2 + 267^2) = 377.6mm diagonally in from the corner. 378+550 = 928mm to the outside of the centre of the arc.
Old 25 October 2004, 07:44 PM
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jjones
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get a square one
Old 25 October 2004, 07:44 PM
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ajm
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Originally Posted by hades
Note the 267mm bit on the left hand side. IMHO, I'd suggest that is a straight bit, i.e. not part of the arc. This means there is a 550mm radius arc, plus 267mm of straight section. 550+267 = 817.

Put it another way, the centre point from which the radius is drawn is 267 external (250 internal) in from each edge. This corresponds to square root of (267^2 + 267^2) = 377.6mm diagonally in from the corner. 378+550 = 928mm to the outside of the centre of the arc.

I concur!
Old 25 October 2004, 07:45 PM
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Originally Posted by ajm
I concur!
thanks
Old 25 October 2004, 07:56 PM
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Jap2Scrap
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Just checked it using AutoCAD and jjones is spot on the money.

927.595 mm
Old 25 October 2004, 07:56 PM
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Clarebabes
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So it sticks out less than an 800 x 800 square one then?

lol

Clare
Old 25 October 2004, 08:00 PM
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Brendan Hughes
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Originally Posted by Jap2Scrap
Just checked it using AutoCAD and jjones is spot on the money.
What - Autocad says "get a square one"?
Old 25 October 2004, 08:05 PM
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ajm
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Originally Posted by Clarebabes
So it sticks out less than an 800 x 800 square one then?

lol

Clare
Yes, 800 square sticks out 1131mm
Old 25 October 2004, 08:09 PM
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Jap2Scrap
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Originally Posted by Brendan Hughes
What - Autocad says "get a square one"?
OOOOOPSSS

not been a good day, lol...

Obviously I meant Hades
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