Question

With the help of a normal ruler and a compass only, which of the following line segments is possible to construct?
(This question has multiple correct answer)
A) 2.1 cm
B) 4.2 cm
C) 5.43 cm
D) 3.3 cm

Answer 1

Hint:
It is given in the question that with the help of a normal ruler and a compass only which of the above line segments is possible to construct.
Firstly, from the given option we have to choose the values which have decimal up to 1digit only.
Then, using the above information find which option is possible to construct with the help of normal and compass only.

Complete step by step solution:
It is given in the question that with the help of a normal ruler and a compass only which of the above line segments is possible to construct.
Now, least count of normal ruler or normal scale is 0.1 cm that is minimum length that can be measured using a normal ruler or normal scale is 0.1 cm
So, from the given option we have to choose the values which have decimal up to 1 digit only.
Thus, from the given option 2.1 cm, 4.2 cm and 3.3 cm can be drawn from the rural or scale.

Since, to measure 5.43 we need a scale whose least count is 0.01 m.

Note:
Additional Information:
Least Count: Least Count of a measuring instrument is the smallest and accurate value in the measured quantity that can be resolved on the instrument’s scale.
The smallest value that can be measured by the measuring instrument is called its least count.
The least count of normal ruler or normal scale is 0.1 cm.