Jawabanmu

2014-06-06T23:03:37+07:00
2310 =150/360 x 22/7 x r x r
2310 = 15/36 x 22/7 x r xr
2310 = 55/42 x r x r
r x r = 2310 x 42/55
r = 42 cm .

maaf kl salah....