P - CLSA

FEBRUARY
CENTRAL COAST
CHAPTER ACTIVITIES
The Central Coast Chapter of
C.L.S.A. donated a lot survey and
map to our local Public Radio Station
(KCBX) in conjunction with
their annual pledge week. Besides
offering high quality noncommercial
programming, the station
also broadcasts the weekly San
Luis Obispo County Board of Supervisors
meetings. The pledge raised
$800 for KCBX and provided our
association with valuable public exposure.
In addition, our chapter invited
students in the Survey program at
California State University at
Fresno to attend our meeting. The
students gave a very professional
slide presentation illustrating their
program and were very interested in
our ideas for improving the program.
Following the meeting the
students split up and stayed in
various surveyors homes. The next
day students went to work at a firm
of their choice or helped with the
pledged survey. It was a totally enjoyable
learning experience for both
the students and the chapter
members. Eleven students participated
but evidently many more
wished to attend. If any other
chapters are interested in this type
of program, please contact C.S.U.
Fresno.
D
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FINDING A MIDPOINT
Submitted by John Hoffman, L.S. of Taft, CA
The question occasionally arises whether finding the midpoint of one
"centerline" of a section or YA section is equivalent to locating the center "by
intersection." The following is offered as proof that it is, wherever the '4 or
¥4 % comers are the midpoints of the respective sides.
(Center of Sec)
{V4 corner) {Section comer)
Sample VA section; made extremely irregular for emphasis.
Object: to prove that FO = OH and that EO = OG
{V4 corner)
Given: E lies onAB, F onBC, G onCD, H onDA &0 0J1.FH and EG (butjiot,
in general, on BD or AC). Also, AE = EB, BF = FC, CG = GD, DH = HA.
AE/AB =AH/Ab =l/2