How do I decide if a point is within the triangle

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Thread starter Asuralm
Start date Feb 5, 2007
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Asuralm

Thread starter
Feb 5, 2007

Hi all:
Give three point P1, P2, P3 in R^3. How do I decide if a point P is inside of the triangle P1P2P3 please?

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morphism

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Homework Helper

Feb 5, 2007

P1, P2, and P3, provided that they aren't colinear, determine a plane. So the first condition is that P lies in that plane. Then it becomes a problem in R^2.

How do I decide if a point is within the triangle

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How do I decide if a point is within the triangle

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