Radio Shack TRS-80 X-PAD GT-116 - Page 31

RUN the
program
and
begin
drawing
circles.
What happens is
this:
•
Line
40 goes
to 150 and gets the data.
•
Line
50 waits
for
Pen
down.
•
Line
60
lights
the point.
•
Line
70 waits
for Pen up.
•
Line
80
sets the
first
point.
•
Line
90
gets the
second point.
•
Line 100
waits
for Pen
down.
•
Line
110
compute
the
circles's
size.
•
Line 120 draws
the
circle.
•
Line
130 waits
for Pen up.
•
Line 140 gets the
next
point.
Chapter
8
Checkpoint
1. (True/False)
The radius
of
a
circle
is the
distance from
the
circle's centerpoint
to a point
on the
circle's
circumference.
2.
(True/False)
To draw concentric circles,
use the
same
centerpoint
but
vary the radius.
3.
(True/False) The
centerpoint is
located
on
the
circumference of the circle.
Notes
24