Measuring Line Segments

Q.

Why is it better to use a divider than a ruler, while measuring the length of a line segment?

Q.

The measure of a line segment is known as its __.

Q.

A line segment is defined as

1. a line with finite length

2. a line having one end-point

3. a curved segment of line

4. same as line

Q.

Question 70

In the given figure, how many line segments are there? Name them.

Q.

If $A,B,C$ are three points on a line such that $AB=5cm$, $BC=3cm$ and$AC=8cm$, which one of them lies between the other two?

Q. Find the longest line segment from the following.

1. 
2. 
3. 
4. 

Q.

Draw any line segment, say $\overline{AB}$. Take any point $C$ lying in between $A$ and $B$. Measure the lengths of $AB,BC,$ and $AC$. Is $AB=AC+CB$?

[Note: If $A,B,C$ are any three points on a line, such that $AC+CB=AB$, then we can be sure that $C$ lies between $A$ and $B$.]

Q. What is the total number of line segments in the following figure?

1. 0
2. 1
3. 2
4. 3

Q.

Question 49

Which points in the given figures appear to be mid-points of the line segments? When you locate a mid-point, then name the two equal line segments formed by it.

Q.

Question 4

If A, B, C are three points on a line such that AB = 5 cm, BC = 3 cm and AC = 8 cm, which one of them lies between the other two?

Q.

You have points C, A and B on a straight line. AB = 13 cm, CB = 9 cm and AC = 4 cm. Which of the following options is true?

1. Point B lies between A and C

2. Point A lies between B and C

3. Point B lies exactly between A and C

4. Point C lies between A and B

Q. Sam observed the endpoints of a line segment using a broken ruler as 2cm and 9cm. Find the actual length of the line segment.

1. 10 cm
2. 9 cm
3. 7 cm
4. 8 cm

Q.

Draw a line 15 centimetres long. Markof it. What is its length? Now mark of this shorter line. What is its length?

Q. Which of the following can be defines as "a line having fixed length"?

1. Ray
2. Point
3. Line segment
4. Ruler

Q.

Given line segments of lengths AB= 5 m, BC = 4 m, AC = 9m, which of the points lie between the other two? ​[1 MARK]

Q.

Question 5: Draw a rough figure and label suitably in the following case:
Point P lies on $\overline{AB}$.

Q.

The distance between the end-points of a line segment is its ____.

Q. If a line segment of 2.4 cm divided into 2 equal parts, what is the length of each part?

1. 1.4 cm
2. 1.2 cm
3. 0.6 cm
4. 2.2 cm

Q. A line segment has a definite length.

1. False
2. True

Q.

Why is it better to use a divider than a ruler, while measuring the length of a line segment?

Q.

If A, B, C are three points on a line such that AB = 5 cm, BC = 3 cm and AC = 8 cm, which one of them lies between the other two?

Q.

Construct a triangle $PQR$ in which $QR=6$cm, $\angle Q={60}^{\circ }$ and $PR-PQ=2cm$.

Q.

Shyam's ruler got broken just before a test. However, he was determined to use it for his test. He noted the end points of a line segment observed using the ruler as 4.3 cm and 9.8 cm. What is the actual length of the line segment?

1. 4.5 cm

2. 5 cm

3. 5.5 cm

4. 4 cm

Q.

Find the length of the line segment whose endpoints, as observed on a ruler, are 3 cm and 7 cm.

__

Q.

Why is it better to use a divider than a ruler while measuring the length of a line segment$?$

Q. The length of the line segment whose end points as observed on a ruler is 3 cm and 7 cm is 5cm.

1. True
2. False

Q. Sam observed the endpoints of a line segment using a broken ruler as 2cm and 9cm. The actual length of it is

1. 7 cm
2. 8 cm
3. 10 cm
4. 9 cm

Q.

Line segment of length 4 cm is joined with the line segment of length 8 cm. What is the length of the new line segment?

1. Round

2. Straight

3. Point

4. Circular

Q. A student measures a line segment with a ruler. One of the points of the line segment is at 2 $cm$, while the other is at 7 $cm$. What is the length of the line segment (in $cm$)?

1. 5

Q.

The lengths of line segment AB and line segment BC make the length of line segment AC in figure alongside.

1. False

2. True