Question
Which pair of lines are perpendicular? Give your answer in number. (Eg 1) 

(1) VY and XY
(2) TU and TY
(3) UV and VY
1 m

Click button first when a symbol is required. X

Which pair of lines are perpendicular? Give your answer in number. (Eg 1) 

(1) VY and XY
(2) TU and TY
(3) UV and VY