r1=<0,1,7>+s1<15,6,−12>r2=<4,−4,8>+s2<4,−5,1>r3=<4,−4,8>+s3<4,−5,1>A=r1∩r20+15s1=4+4s21+6s1=−4−5s27−12s1=8+s2s2=−12s1−11+6s1=−4+60s1+5s1=0,s2=−1A(0,1,7)
r2=r3
There is not a triangle formed by the intersection of the following lines
Comments