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Ierofanga [76]
3 years ago
15

a 40 - inch pendulum swings through an angle of 18 degrees. find the lenght of the arc in inches through which the tip of the pe

ndulum swings.
Mathematics
1 answer:
mel-nik [20]3 years ago
8 0
l= 2  \pi  r \frac{ \alpha}{360}
l = 2 *3.14* 40* 18/360 =12.56 inches
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