keliling
= 2 x phi x r
= 2 x 22/7 x 21
= 132 cm = 1,32 m
s (jarak) = 32 m
n (perputaran roda) :
= s÷keliling
= 32 ÷ 1,32
= 24,2
= 25 kali (A)
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keliling
= 2 x phi x r
= 2 x 22/7 x 21
= 132 cm = 1,32 m
s (jarak) = 32 m
n (perputaran roda) :
= s÷keliling
= 32 ÷ 1,32
= 24,2
= 25 kali (A)