1. LINES AND LINE SEGMENTS
GRADE 3

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Hello, How are you doing?
Today, we are going to start a new lesson on Lines and Line segments.

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Line
Line – A Line is straight. It goes in two directions. It does not end. The Line is horizontal as well as vertical.

4. Different type of Lines
Line segment
Ray
Intersecting Lines
Parallel Lines
Horizontal Lines
Vertical Lines
Perpendicular Lines

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Line segment
Line segment – A line segment is straight. It has 2 end points.
Line segment has a specific length.
Line segment

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Ray
A ray is a straight. It has one end point and goes on without end in one direction.

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Intersecting Lines
Intersecting Lines meet or cross at a common point.
Intersecting lines

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Parallel Lines
Parallel Lines do not cross.
These lines are vertical.
Parallel lines

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Identify each Line
A B
Ray
b) Intersecting Lines

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Vertical Lines
Vertical lines are Lines that go up and down.
Vertical Line

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Horizontal Lines
Horizontal Lines go from left to right.

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Perpendicular Lines
Perpendicular Lines intersect at right angle.

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Complete the following. The following figure is made of --- line segments.
Answer - 6

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Name the following.
It has only one end point.
It form the addition symbol.
Answer-
Ray
Perpendicular Lines

15. Which of the following is made of 4 line segments?
Circle
Pentagon
Rectangle
Triangle

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ASSESSMENT

17. 1. How many vertical line segments are used in the word LINE?
Answer- 5

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2. Name the following.
Answer-
Line segment
Ray A B

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3. Say True or False.
A ray is a part of line.
A line segment has two end points.
Parallel Lines never meet.
Answer-
a) True
b) True
c) True

20. 4. How many line segments are shown in the figure?
Answer- 6

21. 5. Which of the following is Perpendicular Line?
A B
Answer - A

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6. Tell whether the following lines are parallel, intersecting or vertical.
A B C
Answer- a) Vertical
b) Parallel
c) Intersecting

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7. What kind of lines will be made when the two lines given below will be produced?
Answer- Intersecting Lines

24. Draw the following. a) Intersecting Lines b) Vertical line
Answer –
A B

25. 9. What kind of lines are used for the figure given below?
Answer-
Parallel Lines
Horizontal Lines
Vertical Lines

26. 10. Which is NOT true about Line segment?
It is straight.
It has 2 end points.
It has fixed length.
None of these.

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Recap
Line
Line segment
Parallel Lines
Intersecting Lines
Perpendicular Lines
Horizontal and vertical Lines
Solved Examples
Practice Problems

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Well Done!
Now Practice worksheets on the Lesson.