Explain two methods those you can use to measure the length of a curve

1.	Explain two methods those you can use to measure the length of a curved line?
Answer» A curved line or surface cannot be MEASURED by a straight scale, a measuring tape or thread must be used instead.To MEASURE a curved line USING a thread, follow the below STEPS: Tie a knot at one end of the thread. ... Now, straighten the thread and measure the length of the TWO knots on a scale.

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