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2p + 2p + 2 + 3p + 1 = 24
7p + 3 = 24
7p = 24 - 3
7p = 21
p =
p = 3
Sisi terpanjang = 3p + 1 = 3 × 3 + 1 = 10 cm
24cm = 2p+2p+2+3p+1
24 = 7p+3
21= 7p
p = 3
Sisi terpanjang = 3p+1