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.