If I have a cylinder with a radius r and an axis that passes through point b with the(adsbygoogle = window.adsbygoogle || []).push({});

direction of vector n, show that its equation can be written in any of the following forms:

1) |(p-b) X n| = r

2) (p - b) X n = r.e (where e s ia unit vector orthogonal to n)

3) |(p-b) - ((p-b).n).n| = r

. = dot product

X = cross product

Thanks in advance for any guide given...

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# Homework Help: 3D planes equations problem

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