Hitunglah luas keliling dan luas 1/4 lingkaran jika diketahui diameternya 14 cm!
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• Bangun Datar
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K = 1/4πd
K = 1/4 × 22/7 × 14
K = 1/4 × 22 × 2
K = 1/4 × 44
K = 11 cm
L = 1/4πr²
L = 1/4 × 22/7 × 7²
L = 38,5 cm²
#Koreksi
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Penjelasan dengan langkah-langkah:
K = 1/4πd
K = 1/4 × 22/7 × 14
K = 1/4 × 22 × 2
K = 1/4 × 44
K = 11 cm
L = 1/4πr²
L = 1/4 × 22/7 × 7²
L = 38,5 cm².
Semoga bermanfaat, maaf kalau salah｡◕‿◕｡
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