Jawabanmu

Jawaban paling cerdas!
2014-02-23T17:50:21+07:00
Luas lingkaran =  \pi *r^2
= 22/7 * 28 *28
= 2464 cm^2

keliling lingkaran =  \pi *d
= 22/7 * 56
= 176

perbandingan
17,6 : 176
= 1 :10

Luas juring POQ = 2464 * 1/10
= 246,4 cm^2
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