sin(pi/5) - Wolfram|Alpha

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Input

sin(π/5)

Decimal approximation

0.58778525229247312916870595463907276859765243764314599107227248075727847416...

Conversion from radians to degrees

sin(36 °)

Reference triangle for angle π/5 radians

width | cos(π/5) = 1/4 (1 + sqrt(5))≈0.809017
height | sin(π/5) = sqrt(5/8 - sqrt(5)/8)≈0.587785

Number line

Number line

Continued fraction

[0; 1, 1, 2, 2, 1, 6, 1, 56, 1, 54, 1, 1, 1, 10, 1, 16, 1, 4, 4, 1, 2, 18, 1, 1, 9, 2, 1, 3, 1, ...]

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