luas lingkaran yg mempunyai panjang diameter 20 cm (π=3,14)

Oleh: USER6238
2 September 2025 matematika 5 menit baca
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Grade: Education Mata Pelajaran: matematika
luas lingkaran yg mempunyai panjang diameter 20 cm (π=3,14)
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Jawaban Terbaik
(42)
L=phi×r×r
L=3,14×10×10
L=314cm^2
Dijawab pada tanggal 2 September 2025
(192)
d = 20 cm
r = d/2 = 20/2 = 10 cm

Mencari luas lingkaran
[tex] Luas~=~ \pi \times r^{2} \\ Luas = 3,14 \times 10^{2} \\ Luas = 3,14 \times 100 \\ Luas = 314 ~ cm^{2} [/tex]
Dijawab pada tanggal 2 September 2025

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