_________ km.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter7: Locus And Concurrence
Section7.2: Concurrence Of Lines
Problem 42E: There are plans to locate a disaster response agency in an area that is prone to tornadic activity....
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The length of the train is about __________ km.
If a central angle is very small, there is little difference in length between an arc and
the inscribed chord. See the figure. Approximate the following length by finding the
arc length. (Note: When a central angle intercepts an arc, the arc is said to subtend
the angle.)
Arc length = length of inscribed chord
Arc
The ends of the railroad track in the desert are 4.5 km away from the vertex of the
subtended angle. A train on the track subtends (horizontally) an angle of 2° 20'. Find
the approximate length of the train.
Inscribed chord
Transcribed Image Text:If a central angle is very small, there is little difference in length between an arc and the inscribed chord. See the figure. Approximate the following length by finding the arc length. (Note: When a central angle intercepts an arc, the arc is said to subtend the angle.) Arc length = length of inscribed chord Arc The ends of the railroad track in the desert are 4.5 km away from the vertex of the subtended angle. A train on the track subtends (horizontally) an angle of 2° 20'. Find the approximate length of the train. Inscribed chord
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