Jawabanmu

2014-03-11T05:20:33+07:00
75/360 * π2r = 10
5/24 * π2r = 10
π2r = 24/5 * 10
π2r = 48
2r = 48/π
2r = 132
r = 66 cm

maaf klo jawabannya salah
2014-03-11T14:30:58+07:00
75/360 * π2r = 10
5/24 * π2r = 10
π2r = 24/5 * 10
π2r = 48
2r = 48/π
2r = 132
r = 66 cm