Identify the two statements that contradict eachother.

1- line pq lies on plane pqr
2- point s lies on plane pqr
3- line qs does not lie on plane pqr

Question

Identify the two statements that contradict eachother.

1- line pq lies on plane pqr
2- point s lies on plane pqr
3- line qs does not lie on plane pqr

directrix · Answer

3- line qs does not lie on plane pqr

From (1) it is known that points p and q lie on plane pqr
From (2) it is known that point s lies on plane pqr.

Having established that points s and q lie on plane pqr, the line qs containing them has to lie on the same plane pqr.