Lines, rays and line segments

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Presentation transcript:

Lines, rays and line segments

lines = straight lines can be extended both ways Can you measure its length?

rays can be extended one way other end fixed Can you measure its length?

line segments How many line segments? both ends fixed Any more? Can you measure its length?

line What can you call this line? A B C AB BC AC

rays Which rays have 2 names? How many rays? A B C AB BA BC CB AC CA

line segments How many line segments? A B C AB BC AC

line segments A B C 4 cm 3 cm + = 7 cm AB + BC = AC

line, rays and line segment PQ P Q PQ PQ QP