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↔ d = 21 cm
↔ n = 5 Putaran
≡ Ditanya: Panjang Lintasan (s)?
≡ Dijawab:
⇔ Tentukan Dahulu Keliling (k):
⇒ k = π × d
⇒ k = ²²/₇ × 21
⇒ k = 66 cm
⇔ Tentukan Panjang Lintasan (s):
⇒ s = n × k
⇒ s = 5 × 66 cm
⇒ s = 330 cm = 3,3 m
∴ Jadi, panjang lintasan roda adalah 3,3 meter
d=21
r=10.5 cm
k=2 . 22/7 . 10.5cm
k=2 . 1.5
k=3
s=n x k
s=5 x 3
s=15