Exercise
4.1
1. Fill in the blanks.
(i)
A line through two end points ‘A’ and ‘B’ is denoted by ____________. Answer:
(ii)
A line segment from point ‘B’ to point ‘A’ is denoted by ____________. Answer:
(iii)
A ray has ____________ end point(s).
2. How many line segments are there in the given
line? Name them.
Answer: 10 line segments are there in the given line
They are
3. Measure the following line segments.
Answer:
4. Construct a line segment using ruler and compass.
Answer:
5.
From the given figure
(i)
identify the parallel lines
(ii)
identify the intersecting lines
(iii)
name the points of intersection.
Answer:
6.
From the given figure, name the
(i)
parallel lines
(ii)
intersecting lines
(iii)
points of intersection.
Answer:
7. From the given figure, name
(i) all pairs of parallel lines.
(ii) all pairs of intersecting lines.
(iii) pair of lines whose point of intersection
is ‘V’.
(iv) point of intersection of the lines ‘ l2 ’ and ‘l3’.
(v)
point of intersection of the lines ‘l1’ and ‘l5’.
Answer:
(i) ‘l3’ &
‘l4’ , ‘l4’ & ‘l5’, ‘l3’
& ‘l5’
(ii) ‘l1’ & ‘l2’ , ‘l1’
& ‘l3’, ‘l1’ & ‘l4’ ‘l1’
& ‘l5’ , ‘l2’ & ‘l3’,
(iii) ‘l1’
& ‘l2’
(iv) Q
(v) U
Objective
Type Questions
8. The number of line segments in is
(a)
1
(b)
2
(c)
3
(d)
4
Answer: (c) 3
9.
A line is denoted as
Answer: (d)
Answers:
(iii) P, Q and R
7) (i) l3 and l4 , l4 and l5 , l3 and l5
(ii) l1
and l2, l1 and l3 , l1 and l4 , l1 and l5 , l2 and l3 , l2 and l4 , l2 and l5
(iii) l1 and l2
(iv) Q
(v) U
8) c)
3
9) c)
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