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Bab : Bangun Datar
Sub Bab : Keliling
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Jawaban :
Keliling lingkaran = πd
264 = 22/7 x d
264 x 7 = 22d
1848 = 22d
d = 1848/22
d = 84 cm
r = 42 cm
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—Peanut
K = 2πr
264 = 2.22/7.r
264 = 44/7.r
264.7/44 = r
42 = r
D.42 cm
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