Lines and Angles : Lines and Angles (cheat sheet)
Slide2 : A ___________ marks an exact location in space. Use a letter to name a point.
A
Point A
Point
Slide3 : A ___________ is an endless straight path. Use two points on the line to name the line.
A B
Line AB or BA
Line
Slide4 : A ___________ is part of a line with one endpoint and goes on forever in one direction. P S
Ray PS Ray
Slide5 : A ___________________ is a part of a line between two endpoints. Q X
Line Segment QX or XQ Line Segment
Slide6 : An ___________ is formed by two rays with the same endpoint. It is named by the three letters contained in it.
U M
TUM or MUT T Angle
Show Me… : Show Me… Point X Line ZO X Z O Line Segment BQ B Q
Angles : Angles A ___________ angle measures exactly 180 degrees. Straight
Angles : Angles A ___________ angle measures exactly 90 degrees. Right
Angles : Angles An ___________ angle measures less than 90 degrees and more than 0 degrees. Acute
Angles : Angles An ___________ angle measures more than 90 degrees and less than 180 degrees. Obtuse
Line Relationships : Line Relationships Lines are ____________ if they are the same distance away at every point. Parallel
Line Relationships : Line Relationships Lines that cross at one point are _________________ lines. Intersecting
Line Relationships : Line Relationships Lines that intersect to form 4 right angles are ________________ lines. Perpendicular
Find in the room: : Find in the room: A right angle The bricks The door Mountain Math board
Find: : Find: An acute angle A right angle Two parallel lines Intersecting lines An obtuse angle Perpendicular lines A straight angle A smiley face
Assignment : Assignment
On the board!!