Transcript Document

LINES AND LINE
SEGMENTS
GRADE 3
copyright@Ed2netLearning,Inc
1
Hello, How are you doing?
Today, we are going to start a new lesson on
Lines and Line segments.
copyright@Ed2netLearning,Inc
2
Line
Line – A Line is straight. It goes in two
directions. It does not end. The Line is
horizontal as well as vertical.
copyright@Ed2netLearning,Inc
3
Different type of Lines







Line segment
Ray
Intersecting Lines
Parallel Lines
Horizontal Lines
Vertical Lines
Perpendicular Lines
copyright@Ed2netLearning,Inc
4
Line segment
Line segment – A
line segment is
straight. It has 2
end points.
Line segment
Line segment has a
specific length.
copyright@Ed2netLearning,Inc
5
Ray
A ray is a straight. It has one end point and
goes on without end in one direction.
copyright@Ed2netLearning,Inc
6
Intersecting Lines
Intersecting Lines meet or cross at a
common point.
Intersecting lines
copyright@Ed2netLearning,Inc
7
Parallel Lines
Parallel Lines do not cross.
These lines are vertical.
Parallel lines
copyright@Ed2netLearning,Inc
8
Identify each Line
A
B
Ray
b) Intersecting Lines
A)
copyright@Ed2netLearning,Inc
9
Vertical Lines
Vertical lines are Lines that go up and down.
Vertical Line
copyright@Ed2netLearning,Inc
10
Horizontal Lines
Horizontal Lines go from left to right.
copyright@Ed2netLearning,Inc
11
Perpendicular Lines
Perpendicular Lines
intersect at right
angle.
copyright@Ed2netLearning,Inc
12
Complete the following.
The following figure is made of --- line
segments.
Answer - 6
copyright@Ed2netLearning,Inc
13
Name the following.
It has only one end point.
b) It form the addition symbol.
Answera) Ray
b) Perpendicular Lines
a)
copyright@Ed2netLearning,Inc
14
Which of the following is made of 4
line segments?
a)
b)
c)
d)
Circle
Pentagon
Rectangle
Triangle
copyright@Ed2netLearning,Inc
15
ASSESSMENT
copyright@Ed2netLearning,Inc
16
1.
How many vertical line segments
are used in the word LINE?
Answer- 5
copyright@Ed2netLearning,Inc
17
2. Name the following.
Answera) Line segment
b) Ray
A
B
copyright@Ed2netLearning,Inc
18
3. Say True or False.
A ray is a part of line.
b) A line segment has two end points.
c) Parallel Lines never meet.
Answera) True
b) True
c) True
a)
copyright@Ed2netLearning,Inc
19
4.
How many line segments are shown
in the figure?
Answer- 6
copyright@Ed2netLearning,Inc
20
5.
Which of the following is
Perpendicular Line?
A
B
Answer - A
copyright@Ed2netLearning,Inc
21
6.
Tell whether the following lines are
parallel, intersecting or vertical.
A
Answer-
B
C
a) Vertical
b) Parallel
c) Intersecting
copyright@Ed2netLearning,Inc
22
7.
What kind of lines will be made
when the two lines given below will
be produced?
Answer- Intersecting Lines
copyright@Ed2netLearning,Inc
23
8. Draw the following.
a) Intersecting Lines
b) Vertical line
Answer –
A
B
copyright@Ed2netLearning,Inc
24
9.
What kind of lines are used for the
figure given below?
AnswerParallel Lines
Horizontal Lines
Vertical Lines
copyright@Ed2netLearning,Inc
25
10. Which is NOT true about Line
segment?
a)
b)
c)
d)
It is straight.
It has 2 end points.
It has fixed length.
None of these.
copyright@Ed2netLearning,Inc
26
Recap
Line
 Line segment
 Parallel Lines
 Intersecting Lines
 Perpendicular Lines
 Horizontal and vertical Lines
 Solved Examples
 Practice Problems

copyright@Ed2netLearning,Inc
27
Well Done!
Now Practice worksheets on the Lesson.
copyright@Ed2netLearning,Inc
28