Penjelasan dengan langkah-langkah:
r = d ÷ 2 = 28 cm ÷ 2 = 14 cm
maka
L = pi × r²
L = 22/7 × 14 cm²
L = 22/7 × 196 cm
L = 616 cm²
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Penjelasan dengan langkah-langkah:
r = d ÷ 2 = 28 cm ÷ 2 = 14 cm
maka
L = pi × r²
L = 22/7 × 14 cm²
L = 22/7 × 196 cm
L = 616 cm²