Question 7.AB and CD are parallel lines. Calculate s and t. B D t 75° S A C
Question 8. Look at the diagram. 56° 126% Explain why these two lines cannot be parallel.
Question 10. The diagram shows angle X is 45°. X 45° a 60% a.Calculate a. b. Angle X is increased to 90 °. Find the new value of a.
