4 m - 4(40 cm + 36 cm + 18 cm)
= 4 m - 4(94cm)
= 4 m - 376 cm
= 400 cm - 376 cm = 24 cm
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4 m - 4(40 cm + 36 cm + 18 cm)
= 4 m - 4(94cm)
= 4 m - 376 cm
= 400 cm - 376 cm = 24 cm
Kawat = 4 m = 400 cm
p = 40 cm
l = 36 cm
t = 18 cm
Ditanya :
Sisa kawat?
Jawab :
Kerangka = 4(p + l + t)
Kerangka = 4(40 + 36 + 18)
Kerangka = 4(94)
Kerangka = 376 cm
Sisa kawat = 400 - 376
Sisa kawat = 24 cm (D)