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-waktu ; 25mnt
penye:
panjang lintasan = (panjang jarum) × (waktu)
10 × 25
250 cm
25 menit = 25/5 x 30 = 150⁰
LB = α/360 x KO
= 150/360 x 2 x 3,14 x 10
= 1/2,4 x 62.8
= 26,17 cm