1957-58

RECREATION GROUNDS
NET BALL
Dimensions of Court : zoo
ft. long by
50
ft. wide.
POLO
Ground
:
Length not to exceed 300 yds. ; breadth not to exceed
zoo yds. if unboarded,
16o
yds. if boarded.
RUGBY FOOTBALL
Ground
:
Not exceeding, and as near as practicable,
1
io yds.
long and 75 yds. broad, with a maximum of
25
yds. at each end for
" dead-ball " line.
HOW TO FIND A RIGHT ANGLE
METHOD I
A piece of metal (or wood) 3 ft. in length, with cords attached
at each end, one 4 ft. long, the other 5 ft.
The right angle is obtained by placing the metal (or wood) on
the ground, and driving in a pin where the strings meet.
METHOD
II
(No measurements required)
C
C/
i
Fig.
I
Fig. z
To make a right angle on line AB at B
Take a piece of rope
any
length and find its middle point (by
doubling). Now fix end B with a peg and the other end at A on the
given line at a convenient distance from B. Take hold of middle of
rope, stretch tightly, as in Fig
1,
and drive in peg at C.
Now keeping A fixed, take the other end of the rope at B and pull
the rope taut in the line AC, as in Fig. z, to D.
The angle DBA thus formed is a right angle.