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2464 = (22/7)
= 2464 (7/22)
= 784
r = 28
Keliling = 2r = 2(22/7) (28) = 176
17. L =
314 = (3,14)
= 314/3,14
= 100
r = 10
panjang busur =
= (1/8) (2 (3,14)(10))
= (1/8) (62,8)
= 7,85