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🔺 Right Triangle Calculator
a (adjacent)
b (opposite)
c (hypotenuse)
90°
Calculation Mode
Two Sides (a, b, c)
One Side + One Angle
Side a (adjacent)
Side b (opposite)
Side c (hypotenuse)
Side Value
Side Type
a (adjacent)
b (opposite)
c (hypotenuse)
Angle (°)
Precision (decimal places)
Calculate Triangle
Side a
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Side b
--
Side c
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Angle α (°)
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Angle β (°)
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Area
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Perimeter
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Height (to hypotenuse)
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Notes:
Pythagorean theorem: a² + b² = c²
Trigonometric ratios: sin(α) = b/c, cos(α) = a/c, tan(α) = b/a
Angles sum: α + β = 90°
Area = (a × b) / 2