Drawing a Graveyard Plan

Some Useful Geometry

 

Two ways to plot a right angle:

 

first diagram of how to plot a right angle

Choose distances x and y to avoid
obstacles.

Greater distances will produce a more
accurate result.

second diagram of how to plot a right angle

This method is useful when there are
obstructions on one side of the line.

Any multiples of 3, 4 and 5 can be used,
for example, 6, 8 and 10 metres.

You could also use multiples of 5, 12 and 13.

 

Checking that the grid is 'square':

 

diagram showing a rectangle with equal diagonals

A true rectangle has equal diagonals A and B.

second diagram of how to plot a right angle

A is shorter than B because the grid is 'off square'.


Page last updated 28th May, 2012
Please contact us if you have any comments about this page or if you have any problems with it.

Home