Where D - HORIZONTAL DISTANCE a = the angle subtended by the targets. Example 2-11: A 2-m long subtense bar was first set up at A and subsequently at B, and the subtended angles to the bar, as read from a theodolite positioned somewhere along the middle of line AB, were recorded as e°24'51" and Determine the length of AB. e°20'30", respectively.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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D =
= cot
tan
where
D = HORIZONTAL DISTANCE
a = the angle subtended by the targets.
Example 2-11:
A 2-m long subtense bar was first set up
at A and subsequently at B, and the
subtended angles to the bar, as read from
a theodolite positioned somewhere along
the middle of line AB, were recorded as
8°24'51"
and
g°20'30",
respectively.
Determine the length of AB.
Transcribed Image Text:D = = cot tan where D = HORIZONTAL DISTANCE a = the angle subtended by the targets. Example 2-11: A 2-m long subtense bar was first set up at A and subsequently at B, and the subtended angles to the bar, as read from a theodolite positioned somewhere along the middle of line AB, were recorded as 8°24'51" and g°20'30", respectively. Determine the length of AB.
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