tolong jawab beserta caranya

2. < pusat AOB = Pjg busur AB
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360° K.ling

320° = pjg busur AB
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360° 2•n•r

32° = pjg busur AB
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36° 2 • 3,14 • 10

32° = pjg busur AB
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36° 62,8

36 • pjg busur AB = 62,8 • 32
Pjg busur AB = 2009,6 : 36
Pjg busur AB = 55,82