Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


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

Topic: Intersection of two triangles
Replies: 2   Last Post: Nov 6, 2012 7:19 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
bensor

Posts: 2
Registered: 11/5/12
Intersection of two triangles
Posted: Nov 5, 2012 9:33 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply
pic.jpg (35.2 K)

If we assume that s1(x)=s2(x) (the areas of the two triangles are equal) and and we know (x1, y1), (x2, y2), (x3, y3)and also we assume that the line L which is between (x1, y1) and (x4, y4), because we know for example another point in this line so we know the slope and the line. How can I find x4 ?
At fisrt , I want to find(x(x4), y(x4)) (intersection of two triangles) , so we have:
(y2-y1/x2-x1)(x-x1) + y1 = (y3-y4/x3-x4)(x-x3)+ y3
then we should solve this equation to find x and y in terms of x4.
Then by equality of areas of two triangles chould we find x4? could some body help me to find x4 for me?



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.