Because 18n = 45k → 2n = 5k → n = 5a, k = 2a → θ = 18×5a = 90a → so only multiples of 90. - AMAZONAWS
Why 18n = 45k Implies Only Multiples of 90: A Simple Mathematical Breakdown
Mar 06, 2026
Why 18n = 45k Implies Only Multiples of 90: A Simple Mathematical Breakdown