Adi sedang berlatih naik mobil pada lintasan berbentuk lingkaran dengan jari jari 28 meter , tentukan jarak yang ditempuh adi untuk : a. 1 kali putaran b. 2 kali putaran c. 2 1/2 putaran d. 5 putaran
crutudg
1.KO = 2πr = 2 . 22/7 . 28 = 176 meter 2. 2 KO = 2 x 176 = 352 meter 3. 2 1/2 KO = 2 1/2 x 176 = 440 meter 4. 5 KO = 5 x 176 = 880 meter
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rifdahTs
K = 2 r k = 2 × × 28 = 2 ×88 = 176 m a. 1 putraran = 1 × 176 m = 176 m b. 2 putaran = 2 × 176 m = 352 m c 2 1/2 putaran = × 176 = 88 m d. 5 putaran = 5 × 176 = 880 m
= 2 . 22/7 . 28
= 176 meter
2. 2 KO = 2 x 176 = 352 meter
3. 2 1/2 KO = 2 1/2 x 176 = 440 meter
4. 5 KO = 5 x 176 = 880 meter
k = 2 × × 28
= 2 ×88
= 176 m
a. 1 putraran = 1 × 176 m = 176 m
b. 2 putaran = 2 × 176 m = 352 m
c 2 1/2 putaran = × 176 = 88 m
d. 5 putaran = 5 × 176 = 880 m