TRIGkwondo — Kick Into Trigonometry!

🥋 Dojo Tools

RightSOH CAH TOA · Pythagoras

AcuteSine Law · Cosine Law

ObtuseSine Law · Cosine Law

Drag a triangle onto the mat (or click it). Drag triangles on the mat to move them.

👁 Display

Side lengths / distances Angle measures Vertex labels (A, B, C) Side names (a, b, c) Angle arcs & right-angle box Show “?” for unknowns Grid on the mat Triangle number (△1) inside triangle

📜 Formula Scroll

SOH: sin θ = opp ÷ hyp

CAH: cos θ = adj ÷ hyp

TOA: tan θ = opp ÷ adj

c² = a² + b²Pythagorean Theorem (right triangles)

a/sin A = b/sin B = c/sin CSine Law (any triangle)

c² = a² + b² − 2ab cos CCosine Law (any triangle)

∠A + ∠B + ∠C = 180°Angle sum of a triangle

🏆 Solution

Drag a triangle onto the mat, enter what you know, then press SOLVE!

🎯 Known Information

Add a triangle to the mat to begin.

Vertex names

Triangle type

Sides

Angles

Side a

∠A

Side b

∠B

Side c

∠C

Leave unknowns blank. Each side is named with the lowercase letter of the angle across from it. In radians you can type pi/4. Press Enter to solve.

📏 Units

Measurement system

Length unit

Convert values when unit changes

Angle measure

Round answers to