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alas₁ = 16 cm
tinggi₁ = DF
tinggi₁ = 12 cm
alas₂ = AB
alas₂ = 24 cm
tinggi₂ = DE
tinggi₂ = ?
alas₁ * tinggi₁ = alas₂ * tinggi₂
16 cm * 12 cm = 24 cm * DE
DE =
DE = 8 cm
Jadi, DE = 8 cm