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Verified answer
Jumlah sisi sjjr = 44mL = jmlh sisi sjjr × tinggi : 2
330m^2 = 22m × t
Tinggi = 15m
Kell = 30 + 14 + 17 + 17 = 78m
3 × Kell = 3 × 78 = 234m
17m = sisi sama kaki trapesium
Di dapat dari pitagoras (30-14 : 2) dengan 15, jadi triple pitagoras 8, 15, 17
t = L × 2 / jumlah sejajar
= 330 × 2 / (30 + 14)
= 660 / 44
= 15 m
Panjang sisi kaki trapesium → √t² + a²
= √15² + (30 - 14 / 2)²
= √ 225 + 8²
= √225 + 64
= √289
= 17 m
Maka, panjang kawat → 3 × keliling
= 3 × (jumlah sejajar + 2kaki)
= 3 × (44 + 2×17)
= 3 × (44 + 34)
= 3 × 78
= 234 m
Smoga membantu :)