draw a line segment QR = 5 cm. construct perpendiculars at point Q and R to it. name the as QS and RY respectively . are they both parallel Share with your friends Share 2 Shipra Dang answered this Dear Student, Consider the figure as given below: Since, SQ⊥QR⇒∠SQR=90°Also, YR⊥QR⇒∠YRQ=90°⇒∠SQR+∠YRQ=90°+90°=180°They are forming co-interior angles.So, SQ∥YR Regards, 4 View Full Answer