Question 11 Mark
Indentify parallel line segments in the figures given below:
Answer
View full question & answer→$DE\ ||\ BC$. This is because they do not intersect each other.
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Question 21 Mark
Indentify parallel line segments in the figures given below:
Answer
View full question & answer→$AB\ ||\ DC$ and $AD\ ||\ BC.$
This is because these pairs of line segments do not intersect each other.
This is because these pairs of line segments do not intersect each other.
Question 31 Mark
The following statement are true and false? Two parallel lines are everwhere the same distance distance apart.
Answer
View full question & answer→True.
Perpendicular distance between two parallel lines is same at all points on the lines.
Perpendicular distance between two parallel lines is same at all points on the lines.
Question 41 Mark
The following statement are true and false? Two lines are parallel if they do not meet, even when produced.
Answer
View full question & answer→True.
The statement is true because such lines do not intersect even when produced.
The statement is true because such lines do not intersect even when produced.
Question 51 Mark
The following statement are true and false?If two rays do not intersect, they are parallel.
Answer
View full question & answer→True.
The corresponding lines determined by them will not intersect. Hence, they are parallel to each other.
The corresponding lines determined by them will not intersect. Hence, they are parallel to each other.
Question 61 Mark
Find the distance between the parallel lines $l$ and $m$, using a set square.
Answer
View full question & answer→Distance between $l$ and $m$ is $1.3\ cm$. Place the ruler so that one of its measuring edges lies along the line $l$. Hold it with one hand. Now place a set square with one arm of the right angle coinciding with the edge of the ruler. Draw the line segment $PM$ along the edge of the set square, as shown in the figure. Then, measure the distance $(PM)$ between $l$ and $m$, which will be equal to $1.3\ cm.$
Question 71 Mark
Indentify parallel line segments in the figures given below:
Answer
View full question & answer→$AB\ ||\ DC$ and $AD\ ||\ BC.$
This is because these pairs of line segments do not intersect each other.
AB does not intersect $DC$ and $AD$ does not intersect $BC$.
This is because these pairs of line segments do not intersect each other.
AB does not intersect $DC$ and $AD$ does not intersect $BC$.
Question 81 Mark
Indentify parallel line segments in the figures given below:
Answer
View full question & answer→$AB\ ||\ DC, AB\ ||\ EF, DC\ ||\ EF, AC\ ||\ BD, CE\ ||\ DF$ These pairs of line segments are non-intersecting.
So, these pairs of lines are parallel.
So, these pairs of lines are parallel.
Question 91 Mark
The following statement are true and false?If two line segments do not intersect, they are parallel.
Answer
View full question & answer→True.
If the corresponding lines are produced infinitely, they will not intersect. Hence, they are parallel.
If the corresponding lines are produced infinitely, they will not intersect. Hence, they are parallel.
Question 101 Mark
Indentify parallel line segments in the figures given below:
Answer
View full question & answer→$LM\ ||\ RQ, RS\ ||\ PM$ and $LS\ ||\ PQ$
These pairs of line segments are non-intersecting.
So, these pairs of lines are parallel.
These pairs of line segments are non-intersecting.
So, these pairs of lines are parallel.
Question 111 Mark
Find the distance between the parallel lines $l$ and $m$, using a set square.
Answer
View full question & answer→Distance between $l$ and $m$ is $1\ cm.$ Place the ruler so that one of its measuring edges lies along the line $l$. Hold it with one hand. Now place a set square with one arm of the right angle coinciding with the edge of the ruler. Draw the line segment $PM$ along the edge of the set square, as shown in figure. Then, measure the distance $(PQ)$ between $l$ and $m$ as $1\ cm$.