Question

how will you measure the length of a curved line​

Answer 1

Answer:

Measuring a curved line

If we carefully move the thread along the curved line while keeping it stretched tightly, and then measure the used part of the thread on a metre scale, we can get to know the length of the curved line.

Answer 2

Answer:

Measuring a curved line

If we carefully move the thread along the curved line while keeping it stretched tightly, and then measure the used part of the thread on a metre scale, we can get to know the length of the curved line.