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= 4 x 14 cm
= 56 cm
Keliling 1/4 lingkaran = 1/4 x Phi x diameter
= 1/4 x 22/7 x 28 cm
= 22 cm
Keliling bangun = Keliling persegi + Keliling 1/4 lingkaran
= 56 cm + 22 cm
= 78 cm