A theory of pure design

by Denman Waldo Ross

Fig. 21

The equal distances AB and AC, taken in the directions AB and AC respectively, balance on the point “A” from which the directions are taken.

29. Two directions balance when, taken from any point, they diverge at equal angles from any axis, vertical, horizontal, or diagonal.

Fig. 22

The directions AB and AC balance on the vertical axis AD from which they diverge equally, that is to say, at equal angles.

30. Equal distances balance in directions which diverge equally from a given axis.

Fig. 23