physics
By using a thin cotton thread ' how will you find length of a curved line ?
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First we have thin cotton thread andmake a mark at one point and putting it step to step on the side of curved line make the point at the thin cotton thread where the curved line finishes.Measure the length of cotton thread from scale and you will get the length of curved line
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may be your answer
Explanation:
A curved line, also called an "arc," represents a portion of a circle. It is difficult to measure a curve with a straight-edged ruler with any kind of accuracy, but geometry provides a relatively simple way to calculate the length of an arc. You'll need a tool called a protractor and some basic information
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