A plane contains the points A(5,-1,2), B(2,-4,-1) and c(8,-6,2). A second plane contains the point D(4,2,4) and is perpendicular to r=[7,-2,0] t[1,3,-2]. find the intersection of these plane.

2. There is a triange formed by the intersection of the following lines:

r1= [2,1,7]+s[5,2,-4]

r2= [6,-4,8] +t[4,-5,1]

r3= [0,9,3] +u[-3,1,1]

what are the perimeter, area and the interior angles of this triangle

Subject | Mathematics |

Due By (Pacific Time) | 10/21/2013 11am |

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