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Helices and its properties

Helix: A curve which is traced on the surface of a cylinder and cuts the generators (fixed direction) at a constant angle is called a helix.

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The following figure shows that the tangent t to a helix C makes a constant angle α with a fixed direction g. The fixed direction (or line) is known as axis or generator of the cylinder. Helix is also known as cylindrical or general helix.

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