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Verified answer
Pembahasan◼ Jari Jari Lingkaran
r = K/2π
r = 31,4 / 2 x 3,14
r = 10/2
r = 5 cm
Luas Lingkaran
= πr²
= 3,14 x 5²
= 3,14 x 25
= 78,5 cm²
Opsi A
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Kelas : 8
Mapel : Matematika
Kategori : Lingkaran