Trig Ruler Simulator Home

Direct trigonometric function reading from mechanical ruler scale intersections[cite: 1].

Angle Controls (θ)

Angle between Legs: 30.0°

Live Scale Readings (Hypotenuse = 1.00)

COS(θ) Base scale at intersection[cite: 1]

0.866

SIN(θ) Perpendicular scale at base[cite: 1]

0.500

TAN(θ) Perpendicular / Base Ratio[cite: 1]

0.577

Display Options

Magnifying Loupes on Intersections Triangle Fill & Unit Circle Guide Clear Acrylic Mechanical Ruler Styling

Interactive Trig Ruler Canvas • Drag Arm to Rotate