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Penjelasan dengan langkah-langkah:
K = 2 (p + l)
___________
Nomor 1 =
Soal a =
K = 2 (14 + 9)
= 2 x 18 = 36 cm
Soal b =
K = 2 (15 +3)
= 2 x 23 = 46 cm
Soal c =
K = 2 (23 + 11)
= 2 x 34 = 68 cm
Soal d =
K = 2 (27 + 26)
= 2 x 53 = 106 cm
Soal e =
K = 2 (30 + 13)
= 2 x 43 = 86 cm
Soal f =
K = 2 (29 + 26)
= 2 x 55 = 110 cm
Nomor 2 =
Soal a =
K = 2 (p + l)
76 = 2 (p + 13)
76 = 2p + 26
2p = 76 - 26
2p = 50
p = 50 / 2
p = 25 cm
Soal b =
K = 2 (p + l)
122 = 2 (p + 23)
122 = 2p + 46
2p = 122 - 46
2p = 76
p = 76 / 2
p = 38 cm
Soal c =
K = 2 (p + l)
70 = 2 (p + 10)
70 = 2p + 20
2p = 70 - 20
2p = 50
p = 50 / 2
p = 25 cm
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