Jawabanmu

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2014-02-04T15:07:13+07:00
Keliling= 2  x TT(phi) x jari2
= 2 x 3,14 x 8
= 50,24 cm
1 5 1
2014-02-04T15:14:44+07:00
Keliling= 2x3.14x8
             50.24cm