Question

Arrange the steps involved in the measurement of a curved line in a correct sequence.
A. Mark the start point and the end point on the thread upto which you want to measure the length.
B. Place the thread along the curved line.
C. Place the thread on the scale starting from zero to the marked end point on thread and measure it.

• A. C-A-B
• B. A-B-C
• C. B-A-C
• D. A-C-B

Answer 1

The correct option is C B-A-C

Firstly take a thread and place it along the curved line. Then mark the start point and end point on the thread upto which you want to measure the length. Finally, to take the measurement, place the thread on a scale starting from zero to the marked end point and measure this length.
In this way a curved line can be measured accurately with the help of a thread.