Part A A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.01 ft. What must be the standard deviation per 150 ft tape length to achieve the desired precision? Express your answer in feet to three significant figures. Submit ΕΠΙ ΑΣΦ vec 0.00750 Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback ? ft Next >

Subject : Surveying I need clear explanation  Note: If you don't know the answer please leave it but don't give me wrong answer. Don't copy from other experts solution.

Question 2 Using the data given in table below, estimate the average precipitation using Thiessen Polygon method. Stations A BCDEFGH В С Ε Н I J Area (km²) 72 34 76 40 76 92 46 40 86 6 Precipitation (mm) 90 110 105 150 160 140 130 135 95 70 Area x Precipitation (km² mm) 6 480 3 740 7.980 6 000 12 160 12 880 5 980 5 400 8 170 420 Arithmetic Thiessen Polyg Isohyetal

Problem 1: If the elevation of point A is 9.722m, elevation of point B= 30.194m, slope distance is 85.473m, height of instrument= 1.652m, height of target(ht)= 1.390m as shown in the figure below. Calculate slope angle (a). Note: Show your answer in degrees/ minutes/ seconds format. 下 S = 85.473 m ht= 1.390m hi=1.652m Elevation B = 30.194 m GROUND Elevation A 1 = 9.722m