Construction and Measurement of a Line Segment

Q.

Who uses angles in real life?

Q.

Which of the following is the correct representation of line segment AB?

1. AB

2. $\overline{AB}$

3. $\overleftrightarrow{AB}$

4. $\overrightarrow{AB}$

Q. What is the length of $\overline{AB}$ ?

1. 4 units
2. 2 units
3. 5 units
4. 7 units

Q.

Which of the following instruments has a semi-circular shape?

1. Ruler

2. Compass

3. Protractor

4. Set square

Q.

Say True/False for the following statement:

The standard unit of measuring an angle is degree.

1. True
2. False

Q. The measure shown by the compass and ruler in the given figure is ________ cm.

1. 10.3
2. 10
3. 11
4. 10.7

Q. Draw a line segment measuring 7.8 cm. Mark a point B above it at a distance of 5 cm. Through B draw a line parallel to the given line segment.$\left[5\right]$

Q.

Length of AB is 16 cm . C is the midpoint of AB , then AC = ____ cm.

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

Q.

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

Q. The best way to compare the length of two line segments is by using a ruler and divider.

1. False
2. True

Q. Construct $\overline{AB}$ of length 7.8 cm. From this, cut off $\overline{AC}$ of length 4.7 cm. What is the measure of $\overline{BC}$ in cm?

1. 4.7
2. 7.4
3. 1.3
4. 3.1

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.

Draw a circle with center O with radius 5 cm. Draw any one of the diameters. With same center A, draw another circle with radius 3 cm. Draw any one of the diameters for this circle too. If you join the ends of both the diameters, the figure you will get is:

1. Parallelogram

2. Square

3. Trapezium

4. Rectangle

Q.

Which of the following method gives the most accurate length of line segments?

1. Using a ruler

2. Using a divider and a ruler

3. Observing the line segment and guessing the length

4. Using a compass