The diagram shows a right-angled triangle with = 12.5 cm and . The line is PQR PR QR 17 extended to S. (a) Calculate the length of PQ. [2] Answer (a) (b) State the values of (i) , = [2] Answer (b) (i) (ii) . = [1] Answer (b) (ii) In the diagram, is the 2), is the point (1, 2) and is the point (1, 18 L point (−1, M N −1). Write down the equations of the lines and (a) LM MN. [1] Answer (a) LM: [1] MN:
17 The diagram shows a right-angled triangle PQR with PR = 12.5 cm and . The line QR is extended to S. (a) Calculate the length of PQ. Answer (a) [2] (b) State the values of (i) , Answer (b) (i) = [2] (ii) . Answer (b) (ii) = [1] 18 In the diagram, L is the point (−1, 2), M is the point (1, 2) and N is the point (1, −1). (a) Write down the equations of the lines LM and MN. Answer (a) LM: [1] MN: [1]
4NA_EM_P1_Prelim_2012.docx