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Keliling Lingkaran
= phi x diameter
= 22/7 x 35
= 110 Cm
Panjang Lintasan
= 110 x 70
= 7,700 Cm
Maaf kalau benar ya kak, soalnya dikelas memang saya gak terlalu cerdas.
=3,14×17,5×17,5
=936,175 ×70=65532,25 cm / jam