La Rioja PAU Technical Drawing II Practice Questions - La Rioja PAU Technical Drawing II Examination - UR (Dibujo Técnico II 2o Bachillerato UR 2026) Exam

Which algebraic expression defines the exact numerical value of the Golden Ratio (Phi, Φ)?

Φ = (1 + √3) / 2 ≈ 1.366 Φ = (1 + √5) / 2 ≈ 1.618 Φ = (1 + √2) / 2 ≈ 1.207 Φ = (2 + √5) / 2 ≈ 2.118

Correct Answer:

Φ = (1 + √5) / 2 ≈ 1.618

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