MSM Fitting in Chapter 3 Triangles and areas Q6 pupil book

The triangle in the diagram below has points A and B fixed (do not try to move these) where they are on the bottom line. Point C is allowed to move anywhere along the parallel line P (move point C to see what happens).
Look to see where: ABC is a right-angled triangle (call this/these point(s) C1) ABC is an acute-angled isosceles triangle (call this/these C2) ABC is acute but not isosceles (call this/these C3) ABC is isosceles and obtuse (call this/these C4) ABC is scalene (call this/these C5) Mark these points on Q6 of the workbook (Chapter 3). Discuss your findings with your partner.