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Trigonometry Calculators

Right Triangle Calculator Click and edit side lengths, top or base angle and hit Calculate or drag slider to re-calculate.

Trigonometry right triangle calculator diagram






BaseAngle

Area 8 m²


If entering decimal inches, mouse over side lengths to show fraction conversion

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.



DON'T BREATH THE DUST If you're cutting concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

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All calculators on this site are geometric only.
Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.


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To fine tune Slider Controls click to select then use keyboard cursor keys.


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