there are three points on a plane, no three of which are on the same straight line with the exception of q, which are all in the same st.line;find the no of

1)st.lines

2)of triangles which result from joining them

I think the question must be that there are P points in a plane of which Q are on a straight line.If it is so,then 

1)No.of straight lines=(P-Q)c₂+(P-Q)(Q)+1

2)No.of triangles=(P-Q)c₃+(P-Q)c₂.Q+(P-Q).Qc₂