k = πd
=22/7 . 28
=88cm
banyak roda berputar = jarak / k
=440m /88 cm
=44000cm/88 cm
=500 kali putaran
Diketahui:
jari jari (r) = 14 cm
jarak (s) = 440 m = 44.000 cm
Ditanyakan:
banyak putaran (n) = ... ?
Penyelesaian:
cari keliling lingkaran
n = s/k
n = 44.000/88
n = 500 putaran
==================
Kelas: 8
Mapel: Matematika
Bab: Lingkaran
Kode: 8.2.7
Kata Kunci: Banyak putaran, keliling lingkaran, jarak
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Verified answer
k = πd
=22/7 . 28
=88cm
banyak roda berputar = jarak / k
=440m /88 cm
=44000cm/88 cm
=500 kali putaran
Diketahui:
jari jari (r) = 14 cm
jarak (s) = 440 m = 44.000 cm
Ditanyakan:
banyak putaran (n) = ... ?
Penyelesaian:
cari keliling lingkaran
n = s/k
n = 44.000/88
n = 500 putaran
==================
Detil Jawaban
Kelas: 8
Mapel: Matematika
Bab: Lingkaran
Kode: 8.2.7
Kata Kunci: Banyak putaran, keliling lingkaran, jarak