Jawabanmu

2014-01-27T14:34:57+07:00
K = π.d
132 = 22/7 . d
d = 132 . 7/22
d = 42
mAKA r = 21 cm

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Jawaban paling cerdas!
2014-01-27T14:37:17+07:00
Keliling = π . d
K = π .d
132 = 22/7 . d
d = 132/22 . 7
d = 6 . 7
d = 42
Jadi jari-jari
= 42/2
= 21 ( D )
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