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p 84
144
The
opposite
angles
of
any
quadrangle
inscribed
in
a circle,
are
equal
to two
right
angles
p 85
145
Corollary.
If any
side of
a quadrangle
inscribed
in a
circle
is produced
the
outward
angle
will
be equal
to the
inward
and
opposite
angle
p 85
146
Corollary.
If two
opposite
angles
of a
quadrangle
taken
together
be equal
to two
right
angles
a circle
may
be
circumscribed
about the figure
p 86
147
Similar
segments
of circles
upon
equal
bases
are
equal
to one
another
p 87
148
In
equal
circles,
equal
angles
either
at the
centers
or circumferences,
intercept
equal
arches.
p 87
149
Corollary.
In
equal
circles
the
sectors
of
equal
angles
are
equal
to one
another.
p 88
150
In equal
circles,
angles
standing
upon
equal
arches
are
equal
either
at the
centers
or
circumferences
p 89
151
In
equal
circles,
equal
strait
lines
cut
off
equal
parts
of the
circumferences
the
lesser
arch
equal
to the
lesser,
and
the
greater
arch
equal
to the
greater.
p 90
152
In equal
circles
equal
arches
are
subtended
by
equal
strait
lines
p 91
153
An
angle
in a
semicircle
is a
right
angle
p 92
154
An
angle
in
the
segment
of a
circle
differs
from
a right
one,
by
the
angle
contained
between
the
base
of the
segment
and
a
diameter
drawn
from
its
extremity.
Remark.
An
angle
in
the
greater
segment
of a
circle
is acute,
but
in
the
lesser
it is
obtuse.
p 93
155
The
angles
made
by a
tangent
and
a
line
drawn
from
the
point
of contact
cutting
the
circle,
are
equal
to the
angles
contained
in
the
opposite
segments
of the
circle.
Identifier:  JB/135/081/003 "JB/" can not be assigned to a declared number type with value 135.



135 
posology 

081 
geometry i 

003 
no. 125 p. 67 

copy/fair copy sheet 
3 

recto 

46199 
