Jawaban:
K1 = ½ 2πr
= ½ 2 . 22/7 . 14
= 44 cm
*K1 = keliling setengah lingkaran yg luar
K2 = ½ 2πr
= ½ 2 . 22/7 . 7
= 22 cm
K = K1 + K2 + 7 + 7
= 44 + 22 + 7 + 7
= 80 cm
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Jawaban:
K1 = ½ 2πr
= ½ 2 . 22/7 . 14
= 44 cm
*K1 = keliling setengah lingkaran yg luar
K2 = ½ 2πr
= ½ 2 . 22/7 . 7
= 22 cm
K = K1 + K2 + 7 + 7
= 44 + 22 + 7 + 7
= 80 cm