Jawabanmu

2014-06-05T10:44:51+07:00
60/360 x 22/7 x 7 x7 = 25 2/3 cm^2 (a)
2014-06-05T10:45:40+07:00
L1/6O= 1/6 x 22/7 x 7 x 7
=25 2/3 cm^2