II
Plenty
of
Air
and
Plenty
of
Room
The
X-Pad can
figure
the
area
of
any
geometric figure.
After
you
trace
the perimeter
of the
figure,
the
area
will
be displayed in 3-signifieant-digit
inches
on
the
Computer's Screen.
To find the area of a figure:
1.
Type in the program that's listed in this section,
2. RUN the program.
3. Draw a figure on
the
paper
with
a
pen (to
make
sure
you have plenty of room, draw the figure in the middle
of your paper),
4. Take the Pen, press down, and start tracing the figure.
As soon as you press the Pen's tip down on the paper to
begin tracing:
TRACING
appears on your
Screen,
telling
you
that
the X-Pad is
hard at work, figuring the area of your
geometric
figure.
The
Computer calculates
the
area
as
the
Pen
moves
(rather
than the
time-consuming alternative of
doing it all at the end). When you lift the Pen from the
paper, the area is displayed on the Screen, For
example:
AREA
IS
1
,24
Tippecanoe and
Two-Dimensional Area,
Too!
When you find area with the X-Pad, you
are
actually
finding the surface area (a
two-dimensional
calculation,
as in
length
x
width) of the
figure.
So,
if you are finding
the
area
of
a
three-dimensional object that you place
on
X-Pad (a soft drink bottle, for example) you are
actually
finding the surface area of one of the
bottle's sides.
21
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