Question

How can you measure the length of a curved line?

Answer 1

Measuring the length of a curved line:

Material required: A piece of thread and a scale.

Procedure:

1. ​Take the thread and make a knot at its one end.
2. Place the thread with the end with the knot at one end of the curved line, and consider it as starting point.
3. Now, try to measure the small portion of the line which can be taken as straight.
4. Place the thumb at the end of the measured portion and measure the next straight part similarly.
5. Repeat the process till the end of the line is reached.
6. Make another knot in the thread at the end of the line.
7. Now, straighten the thread and measure the length between the two knots using the scale.

Conclusion:

Thus, with the use of thread and scale the length of a curved line can be easily measured.