402cm
Step-by-step explanation:
First use the formula C=2piR( C= 2pi * Radius)
C=2piR
C=2pi(4)
C=8pi
Then multiply 8pi by the number rotations, 8pi x 16 which is 128pi.
The multiply by pi and round it.
128pi=128 x 3.14= 401.9=
402cm
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