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k ¼ lingkaran = ¼πd = ¼(22/7)14 = 11
k bangun = 19 + 7 + 11 + 12 + 22 = 71
gada di pilihan
= 1/2 . 2πr = πr = 22/7 . 7 = 22
Keliling 1/4 lingkaran di pojok kanan bawah
= 1/4 . 2πr = 1/2πr = 1/2 . 22/7 . 7 = 11
Keliling total
22 + 19 + (7 + 11) + (19 - 7)
= 71