Upload
others
View
6
Download
0
Embed Size (px)
Citation preview
Lines, and
angles, and
rays,
Oh My!
Evelyn Ball
CC.4.G.1
Draw points, lines, line
segments, rays, angles
(right, acute, obtuse),
perpendicular and
parallel lines. Identify
these in two-dimension
figures
point an exact location in space
Looks Like: A!
line a straight path of points that continues without end in both
directions
C D
line segment part of a line between two
endpoints
E F
ray part of a line that has one
endpoint and continues without end in one direction
G H
intersecting lines
lines in a plane that cross at exactly one point; these lines
form 4 (four) lines
O
Z
Q
R
P
parallel lines lines in a plane that are always the same distance apart, these
lines never cross
US
T
V
perpendicular lines
lines in a plane that intersect to form 4 (four) right angles
Z
Y
W X
angle formed by two rays or line
segments that share the same endpoint (vertex)
vertex a point where two rays or line
segments meet or join
right angle forms a square corner
90°
M
N O
straight angle
a straight line 180°
A C B
acute angle less than a right angle between 1° and 89°
G F
E
obtuse angle
greater than a right angle less than a straight angle
between 91° and 179°
Q
R S
A
po int— an exact location in space
l ine— a straight path of points that continues without end in both directions
l ine segment— part of a line between two endpoints
ray— part of a line that has one endpoint and continues without end in one direction
looks like:
read it: point A write it:
looks like:
read it: line BC line CB
write it:
looks like: read it: line segment DE line segment ED
write it:
looks like:
read it: ray FG
write it:
C !
D E F HG
G
i ntersect ing l ines— lines in a plane that cross at exactly one point; these lines form 4 (four) lines
para l l e l l i nes— lines in a plane that are always the same distance apart; these lines never intersect.
perpend i cu lar l ines— lines in a plane that intersect to form 4 (four) right angles
looks like:
looks like:
looks like:
!
Z !
X W
Y
V U
T S
Q
R O
Z
P
ang le— formed by two rays or line segments that have the same endpoint, the shared endpoint is called the vertex
r ight ang le— forms a square corner: 90°
stra ight ang le— forms a line: 180°
acute ang le— less than a right angle: between 1° and 89°
obtuse ang le— greater than a right angle and less than a straight angle: between 91° and 179°
read it: angle MNO angle ONM angle N write it: <MNO <ONM <N
!
M
N O P QN
R
S
T U
V
W X
Thank you for downloading this packet. If you have any questions or concerns regarding this packet please contact
me @ [email protected]
or at my Teachers Notebook shop: http://www.teachersnotebook.com/shop/eball
or my TeachersPayTeachers shop:
h"p://www.teacherspayteachers.com/Store/Evelyn-Ball
Clipart: http://melonheadzillustrating.blogspot.com
Digital papers:www.teacherspayteachers.com/Store/Of-Primary-Importance
Frame: unknown