The Theorem in geometry should have the visual process applied to it in
the same manner. Make a strong picture of the figure which illustrates
it. For example:
=The square on the hypotenuse of a right angle is equal to the sum
of the square on the other two sides.=
To visualize the figure, as illustrated, will aid in fixing this
Theorem in mind. Do the same with others. Another example of
emphasizing the important lines as in the Theorem:
Two rectangles are to each other as the products of their bases by
their altitudes.
[Illustration]
In the illustration below the bases and altitudes are emphasized to
remind you of the fact that they are the factors to be dealt with.
Notice that in the first pages of the Geometry all simple figures are
illustrated as explained or defined. Learn to visualize the problem
with your book closed, work until you can see it clearly, and you will
understand it better.
[Illustration]