Points A and B are 100 m. apart horizontally and are of the same elevation as the foot of a building. The angles of elevation of the top of the building from A and B are 21 and 32 respectively. How far is A fro the building? a) 259.28 m b) 235.56 m c) 243.34 m d) 274.36 m

Points A and B are 100 m. apart horizontally and are of the same elevation as the foot of a building. The angles of elevation of the top of the building from A and B are 21 and 32 respectively. How far is A fro the building? a) 259.28 m b) 235.56 m c) 243.34 m d) 274.36 m

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

State Plane Coordinate Systems

The state plane coordinate system (SPCS or SPS) is a collection of 124 coordinate systems or geographic zones prepared for particular regions of the U.S. Every state consists of one or more than one state plane zone, the boundaries of which generally follow the county lines. Inside the U.S., there are 110 zones in total, 10 more zones in Alaska, 5 in Hawaii, and 1 for Puerto Rico and US Virgin islands. The system is extensively used for geospatial and geographic data assembling by the state and local governments.

Question

Points A and B are 100 m. apart horizontally
and are of the same elevation as the foot of a
building. The angles of elevation of the top of
the building from A and B are 21 and 32
respectively. How far is A fro the building?
a) 259.28 m
b) 235.56 m
c) 243.34 m
d) 274.36 m

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