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= 2 x 1/4 x Keliling lingkaran
= 1/2 x 2 x π x r
= 1/2 x 2 x 22/7 x 14
= 44 cm
Keliling daerah yg diarsir
= 4(26 cm) + 44 cm
= 104 cm + 44 cm
= 148 cm