Q2 - In a land surveying practice in Muscat the data shown in Table 2 is measured. If the RL of point A1 is 245 + YZ, where YZ is the last two digits of the student number. If your student number is 170456 then YZ = 56. a) Calculate the RL of points A2 to A16 by Rise and Fall method b) Calculate the RL of points A2 to A16 by HI method c) Calculate the slope % between each two consecutive point by use of the vertical distance (rise/fall) and column of distance from point A1. Land Surveying Principles & Lab Rev: 01 Template B February 2020 [8] [8] [8] 31 Page F/QAP/021/004 d) Calculate the average slope between point A1 and A16 by calculating the average of slopes calculated in part (c) [6] Table 2: Levelling Data Grid Points B.S. I.S. F.S. Distance from A1 A1 2.45 0 A2 1.55 255 A3 2.05 565 A4 1.35 895 A5 0.75 1250 A6 1.25 3.55 1565 A7 2.25 1900 A8 1.15 2000 A9 0.75 2010 A10 0.55 2150 A11 1.85 2.45 2200 A12 2.25 2250 A13 1.35 2300 A14 1.25 2800 A15 1.15 3250 A16. 1.1 3500