Jawabanmu

2014-03-13T07:21:27+07:00
Α / 360° = 7 / ( 22/7 x 49)
α / 360 = 7 / 154
α = 1/22 x 360 = 16,36°

16,36 / 360 = AB / (2 x 22/7 x 7)
1/22 = AB / 44
AB = 1/22 x 44 = 2 cm
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