Jawabanmu

2014-02-20T05:12:58+07:00
 \frac{Luas lingkaran}{Luas Juring} =  \frac{360}{besar sudut AOB}
 \frac{616}{462} = \frac{360}{besar sudut AOB} 
616xAOB=462X360 (Kali Silang )
616AOB=166320
AOB=166320 : 616
AOB= 270^{o}
1 4 1
2014-02-20T05:20:08+07:00
616xAOB = 462x360
616 AOB = 166320
AOB =  \frac{166320}{616}
AOB = 270
1 3 1