4. Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they,
and how might you define them? (1) parallel lines (ii) perpendicular lines (ii) line segment
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parallel lines:
two or more lines moving freely without intersecting each other is called parallel lines.
PQ||RS
Perpendicular lines
two lines intersecting each other at an angle of 90°
XY ⊥ AB
LINE SEGMENT
line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints.
AB is a line segment
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Answer:
Yes, other terms need to be defined first which are: Plane: A plane is flat surface on which geometric figures are drawn. ... (i) Parallel lines: When two or more never intersect each other in a plane and perpendicular distance between them is always constant then they are said to be parallel lines.
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