Cosine

The point (8, 6) is on the terminal side of angle θ.

cos θ =


« Correct result





Wrong answer

Solution:

 cos theta = fraction{ 8}{ sqrt{ 8**2 + 6**2 } } = fraction{ 8}{ 10 } = 0.8 ; ;







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See also our right triangle calculator. Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

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