A
D
Penjelasan dengan langkah-langkah:
2×22/7×14
2×22×2
88 A
1/2 × 3.14 × r × r
1/2 ×3.14 × 10 × 10
1/2 × 314
157 D
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A
D
Penjelasan dengan langkah-langkah:
2×22/7×14
2×22×2
88 A
1/2 × 3.14 × r × r
1/2 ×3.14 × 10 × 10
1/2 × 314
157 D