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Math Forum » Discussions » Math Topics » geometry.pre-college.independent

Topic: Triangle Point Translation
Replies: 3   Last Post: May 15, 2006 1:11 PM

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serbius3

Posts: 9
From: Houston, TX
Registered: 5/5/06
Triangle Point Translation
Posted: May 5, 2006 4:46 PM
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I know this should be easy, but it's been a long time since I took geometery and I can't seem to get this right.

I have a triangle, defined by three points (x,y).

It does not have to be equilateral or symetrical, but all interior angles are acute.

I'm trying to find an equation to shrink/enlarge this triangle by a specific amount (width/height) and have all three points move away from the center to make the triangle fit this new space.

I tried using an equation on each point to find the slope and then move that point a given amount along that trajectory, but I can't even seem to get that to work right ;)

If anyone out there can help me with this, I would very much appreciate it. Math never was my best subject in school ;)



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