Tan 85 Degrees
Sin, Cos, Tan, Cot of an Angle
What is tan 85°?
Answer
tan 85° ≈
11.4301
Angle in radians: 85° = 17π/36. The point of the angle is in quadrant I, where tangent is positive.
≈ — rounded to 4 decimal places. tan 85° can't be written with square roots: 85° is not a multiple of 3°.
tan 85° = sin 85° / cos 85° ≈ 11.4301
P(cos 85°, sin 85°) ≈ (0.0872, 0.9962)
T(1, tan 85°) ≈ (1, 11.4301) — where line OP meets the line x = 1; T is beyond the drawing, the arrow points to it.
See Also
- Arcsin, Arccos, Arctan, Arccot - The angle from the value of its sine, cosine, tangent or cotangent: exact in degrees and π, with the check and the unit circle
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Geometry Formulas: Area, Volume, Perimeter - The formula for every standard shape, where it comes from, and worked examples
Tangent of nearby angles
FAQ
What is tan 85°?
tan 85° ≈ 11.4301
Why does tan 85° have no exact value?
A trigonometric value of a whole number of degrees can be written with square roots only when the angle is a multiple of 3°. 85° is not, so no such exact form exists; the value is used as a decimal: tan 85° ≈ 11.4301.
Why does a calculator show 0.1789 for tan 85?
The calculator is in radian mode (RAD): it takes tan 85 as the tangent of 85 radians, tan 85 rad ≈ 0.1789. Switch it to degrees (DEG): tan 85° ≈ 11.4301. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.
See Also
- Tan 75 Degrees: Tangent of 75° on the Unit Circle
- Tan 76 Degrees: Tangent of 76° on the Unit Circle
- Tan 77 Degrees: Tangent of 77° on the Unit Circle
- Tan 78 Degrees: Tangent of 78° on the Unit Circle
- Tan 79 Degrees: Tangent of 79° on the Unit Circle
- Tan 80 Degrees: Tangent of 80° on the Unit Circle
- Tan 81 Degrees: Tangent of 81° on the Unit Circle
- Tan 82 Degrees: Tangent of 82° on the Unit Circle
- Tan 83 Degrees: Tangent of 83° on the Unit Circle
- Tan 84 Degrees: Tangent of 84° on the Unit Circle
- Tan 86 Degrees: Tangent of 86° on the Unit Circle
- Tan 87 Degrees: Tangent of 87° on the Unit Circle
- Tan 88 Degrees: Tangent of 88° on the Unit Circle
- Tan 89 Degrees: Tangent of 89° on the Unit Circle
- Tan 90 Degrees: Tangent of 90° on the Unit Circle
- Tan 97 Degrees: Tangent of 97° on the Unit Circle
- Tan 98 Degrees: Tangent of 98° on the Unit Circle
- Tan 100 Degrees: Tangent of 100° on the Unit Circle
- Tan 101 Degrees: Tangent of 101° on the Unit Circle
- Tan 105 Degrees: Tangent of 105° on the Unit Circle
- Тангенс 85 градусов (tg 85°) на единичной окружности
- Tangente de 85 grados (tan 85°) en el círculo unitario
- Tangente de 85 graus (tg 85°) no ciclo trigonométrico