The formula to find the length of a major arc of a circle is ............
The formula to find the length of a major arc of a circle is ............
- A
$l=2 \pi r$
- B
$l=\frac{\pi r \theta}{180}$
- C
$l=2 \pi r-\frac{\pi r \theta}{360}$
- D
$l=2 \pi r-\frac{\pi r \theta}{180}$
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