Two hills A and C have elevations of 600 m and 800 m respectively. In between A and C is another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from C. a.) Determine the dearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. b.) If C is not visible from A, what height of tower must be constructed at C so that it could be visible from A with the line of sight having a clearance of 2 m. above hill B. c.) What height of equal towers at A and C must be constructed in order A, B and C will be intervisible.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Two hills A and C have elevations of 600 m and 800 m respectively. In between A and C is
another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from
C.
a.) Determine the dearance or obstruction of the line of sight at hill B if the observer is at A
so that C will be visible from A.
b.) If C is not visible from A, what height of tower must be constructed at C so that it could
be visible from A with the line of sight having a clearance of 2 m. above hill B.
c.) What height of equal towers at A and C must be constructed in order A, B and C will be
intervisible.
Transcribed Image Text:Two hills A and C have elevations of 600 m and 800 m respectively. In between A and C is another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from C. a.) Determine the dearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. b.) If C is not visible from A, what height of tower must be constructed at C so that it could be visible from A with the line of sight having a clearance of 2 m. above hill B. c.) What height of equal towers at A and C must be constructed in order A, B and C will be intervisible.
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