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676 =
= S
26 = S
Panjang kawat yang diperlukan, maksudnya adalah kelilingnya.
K.persegi = 4.s
=4.26
=104
s² = 676
S= √676
s = 26
dibuat pagar berarti dicari kelilingnya (dipagar)
Keliling = 4 Sisi
= 4 x 26
= 104m
kawat diperlukan 104m