Two triangulation towers 120 m apart are on the same horizontal plane. A surveyor standing and setting up successively the transit at the bases of the towers observes that the angle of elevation of the taller is twice that of smaller. At the midway point, he observes that the angles of elevation are complementary angles. The height of the instruments in all set up are is maintained to be 1.20 m from the plane. Determine the height of the smaller tower.
Two triangulation towers 120 m apart are on the same horizontal plane. A surveyor standing and setting up successively the transit at the bases of the towers observes that the angle of elevation of the taller is twice that of smaller. At the midway point, he observes that the angles of elevation are complementary angles. The height of the instruments in all set up are is maintained to be 1.20 m from the plane. Determine the height of the smaller tower.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Two triangulation towers 120 m apart are on the same
horizontal plane. A surveyor standing and setting up
successively the transit at the bases of the towers
observes that the angle of elevation of the taller is twice
that of smaller. At the midway point, he observes that the
angles of elevation are complementary angles. The height
of the instruments in all set up are is maintained to be 1.20
m from the plane. Determine the height of the smaller
tower.
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