Jawaban:
9.A.132cm
Penjelasan dengan langkah-langkah:
Keliling:2π ×r
:2×22/7×21
:2×22×3
:132cm
11. K:2π×r
:2×3,14×100
:2×314
:628/B
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Jawaban:
9.A.132cm
Penjelasan dengan langkah-langkah:
Keliling:2π ×r
:2×22/7×21
:2×22×3
:132cm
11. K:2π×r
:2×3,14×100
:2×314
:628/B