1. Compute the interior angles between the given pair of lines whose magnetic bearings are given. OA, N 42°20'E OB,N 82°10'E OC, N 32°16'E OD, N 48°12'W OE,S 32°18'E OF,S 42°10'W OG, N 82º34'W OH,S 66°05'W A B D

1. Compute the interior angles between the given pair of lines whose magnetic bearings are given. OA, N 42°20'E OB,N 82°10'E OC, N 32°16'E OD, N 48°12'W OE,S 32°18'E OF,S 42°10'W OG, N 82º34'W OH,S 66°05'W A B D

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

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.

Question

1. Compute the interior angles between the given pair of lines whose magnetic bearings are given.
OA, N 42°20'E
OB, N 82°10'E
OC, N 32°16'E
OD, N 48°12'W
OE,S 32°18'E
OF,S 42°10'W
OG, N 82°34'W
OH,S 66°05'W
A
D
PB
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B
A
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