Jawabanmu

2014-01-27T21:40:01+07:00
Keliling = 2πr
396=2 x 22/7 x r
r= 396 : (44/7)
r= 396 x 7/44
r= 63

5 1 5
2014-01-27T21:53:46+07:00
Kell : 396 M
Rumus mencari keliling : 2 x 22/7 x r
Otomatis R : Kell : 2 : 22/7
R = 396 M : 2 : 22/7 = 5,72
396 = 2. 22/7. r
396.7 = 22.2.r
2772 = 44.r
2272 : 44 = r
r = 63 cm
betul tu kak fayayuni