On Tue, 08 Jul 2008 08:52:57 +0100, Harry Stottle wrote:


"Cicero" wrote in message
news
On Tue, 08 Jul 2008 07:41:15 +0100, john westmore wrote:

We wish to straighten and 'position correctly' the garden fence that
we
share with a neighbour in an adjoining terraced house.

What is the best way to get the fence at exactly right angles to our
houses?
The garden is about twenty metres long. Thanks for advice.

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Get a large sheet (6' x 2')of chipboard or an old door and lay it flat
with one short edge along the wall of the house. Use this board as a
'square' and run a string line along side it to give you a straight
line
at 90 degrees to your houses.
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Or for a more accurate measurement, use Pythagoras's theorem. Lay a 3
unit length against the wall, a 4 unit length as the boundary guide, and
a 5 unit length to make up the other side of the right angled triangle.

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Doesn't that just make a large set square - something like a rectangular
board with squared corners?

Cic.
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