Answered: Determine the weighted mean for the…

Determine the weighted mean for the following angles:(a) 222°12′36″, wt 2; 222°12′42″, wt 1; 222°12′34″, wt 3(b) 106°28′54″ ±1″; 106°28′46″ ±3″; 106°28′56″ ±1″

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.

Question

Determine the weighted mean for the following angles:
(a) 222°12′36″, wt 2; 222°12′42″, wt 1; 222°12′34″, wt 3
(b) 106°28′54″ ±1″; 106°28′46″ ±3″; 106°28′56″ ±1″

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