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r = 28 cm
berputar = 25 kali
maka :
K = 2 x 22/7 x r
= 2 x 22/7 x 28
= 176 cm
maka jarak y ditempuh = 176 x 25 = 4.400 cm = 44 m
=2 x 22/7 x 28 x 25
=2x 22 x 4 x 25
= 4400 cm
= 44m