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Verified answer
Keliling = 2 x π x r110 cm = 2 x 22/7 x r
110 cm = 44/7 x r
r = 110 cm x 7/44
r = 17,5 cm
d = 2 x r
= 2 x 17,5 cm
= 35 cm
Luas lingkaran
= π x r²
= 22/7 x 17,5 cm x 17,5 cm
= 962,5 cm²