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Flip Charts
Lines & Angles
Mathematics, Grade 4
❮
1
/
2
❯
Pairs
of
Lines
Angles
right
angle
straight
angle
acute
angle
obtuse
angle
Parallel
lines
right
angle
A
D
G
H
E
F
I
Definition
Examples
How
to
write
it
How
to
say
it
An
angle
is
made
up
of
two
rays
that
share
the
same
endpoint
called
the
vertex.
A
straight
angle
forms
a
straight
line.
A
right
angle
forms
a
square
corner.
never
intersect
or
cross
one
another
Intersecting
lines
meet
at
the
same
point
Perpendicular
lines
cross
each
other
and
form
right
angles
An
acute
angle
is
less
than
a
right
angle.
An
obtuse
angle
is
greater
than
a
right
angle.
A
ray
is
part
of
a
line
with
one
endpoint
and
goes
on
forever
in
the
other
direction.
A
line
segment
is
part
of
a
line
between
two
endpoints.
A
line
is
a
straight
collection
of
points
that
extend
in
two
opposite
directions
without
end.
A
point
is
a
location
in
space.
Line
Segment
Line
Ray
Angle
Point
•
line
segment
AB
•
line
segment
CD
•
line
segment
EF
or
or
or
or
•
line
AB
•
line
CD
•
line
EF
AB
CD
EF
•
ray
AB
•
ray
CD
•
ray
EF
•
angle
BAC
•
angle
CAB
•
angle
A
BAC
CAB
A
•
point
A
•
point
B
•
point
A
•
point
B
AB
CD
EF
AB
CD
EF
A
A
B
D
C
F
E
B
C
vertex
endpoint
side
side
A
B
C
F
E
A
B
D
A
B
C
D
F
E
© Copyright NewPath Learning. All Rights Reserved. 93-4406
www.newpathlearning.com
Lines
& Angles
\|xiBAHBDy01649mzV
Pairs
of
Lines
Angles
A
D
G
H
E
F
I
Definition
Examples
How
to
write
it
How
to
say
it
Line
Segment
Line
Ray
Angle
Point
Key
Vocabulary
Terms
•
acute
angle
•
parallel
line
•
angle
•
perpendicular
line
•
intersecting
line
•
point
•
line
•
ray
•
line
segment
•
right
angle
•
obtuse
angle
•
straight
angle
© Copyright NewPath Learning. All Rights Reserved. 93-4406
www.newpathlearning.com
Lines
& Angles
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