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📐 Visualtrig - Interactive
Trigonometry Calculator


BaseAngle Click side/angle labels to edit







Trigonometry right triangle calculator diagram


Area 8 m²


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Angle Precision
Length Precision

Click a side or angle entry to activate, and enter values for any 2 known sides (Green + Blue) or any 1 side and 1 angle to calculate the remaining sides and angles. The Green entry is animated when you move the slider control.

Enter Millimeters or Decimal Inches. If inches is selected, mouse over side entries to show fraction conversion.

Only 2 entries will be active at any time. One green, the other blue. All other sides and angles are calculated from the current 2 active entries. Click any side or angle entry to make it active and enter or edit its value. The input background color will change to indicate active and non active entries and the formulas at right will change to reflect the current active selection of known sides / angles. Drag slider to animate the current green active side or angle to re-calculate and re-draw the right triangle.





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Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - there's dust in the spray too!

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