satu taman bunga di sekolah ber bentuk lingkaran dengan diameter 70 cm berapa luas lingkaran tersebut??
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Penjelasan dengan langkah-langkah:
d = 70 cm
r = 1/2d = 1/2(70) = 35 cm
L = πr²
L = 22/7 × 35 × 35
L = 22 × 5 × 35
L = 110 × 35
L = 3.850 cm²