6.5
9.2
8.5
12.0
10.5
14.8
2.6 3.7
4.6 6.5
6.6
9.3
8.6
12.2
10.6
15.0
2.7 3.8
4.7 6.7
6.7
9.5
8.7
12.3
10.7
15. i
2.8 4,0
4.8 6.8
6.8
9.6
8.8
12.4
10.8
15.3
2.9 4.1
4,9 6.9
6.9
9.8
8.9
12.6
iO.9
15.4
In preparing a chart to be
of root-two
p ropo rt
ons select
one of the pairs of dimensions Indicated above fc
r a
bordering rectangle and fit
the material within
It as
:o»-
pactly as practicable.
Measure the short dimension
and if the
CO rr esp(
>nding
ong
dimension from the table Is
grea.ter than
the Ion
g dimension
of the layout, expand the latter to correspond
If
the
long dimension from the
table Is less than
the
ong
dimension of the layout, find the short dimen
lion CO rrespending to the latter and
expand the
short d
mension
of
the layout to correspond.
The proportions of o chart should be such that when reproduced or displayed it will fit harmoniously the medium of presentation.
PROPORTIONS FOR LEHER SIZE. The ratio of 1 (short side) to 1.414 (long side) is particularly appropriate for correspondence size sheets (nominally 81/2" X 11").
Note: A rectanflle of this proportion is Icnown as a "root-two" or "hypotenuse" rectangle, the long side of which is equal to the diagonal of a square constructed on the short side. This rectangle possesses the unique characteristic that when divided in half width-wise, each resulting rectangle is also of root-two proportions; a characteristic useful in grouping charts on a page.