Penjelasan dengan langkah-langkah:
d = 140 cm
Luas = ¼πd²
= 22/7 x 140²/4
= 22/7 x (140/2)²
= 22/7 x 70²
= 22 x 70 x 70/7
= 1.540 x 10
= 15.400 cm²
Diketahui
Ditanya
Jawab
Jadi, luas lingkaran 15.400 cm²
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Penjelasan dengan langkah-langkah:
d = 140 cm
Luas = ¼πd²
= 22/7 x 140²/4
= 22/7 x (140/2)²
= 22/7 x 70²
= 22 x 70 x 70/7
= 1.540 x 10
= 15.400 cm²
Diketahui
Ditanya
Jawab
Jadi, luas lingkaran 15.400 cm²