5. From two points each on the opposite sides of a river, the angles of elevation of the top of an 80 ft tree are 60° and 30°. The points and the tree are in the same straight line, which is perpendicular to the river. How wide is the river?
5. From two points each on the opposite sides of a river, the angles of elevation of the top of an 80 ft tree are 60° and 30°. The points and the tree are in the same straight line, which is perpendicular to the river. How wide is the river?
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter3: Triangles
Section3.5: Inequalities In A Triangles
Problem 19E: Two of the sides of an isosceles triangle have lengths of 10cm and 4cm. Which length must be the...
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![5. From two points each on the opposite sides of a river, the
angles of elevation of the top of an 80 ft tree are 60º and 30º.
The points and the tree are in the same straight line, which is
perpendicular to the river. How wide is the river?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffd5e8ab7-3d26-4a6d-b493-3edc8e799049%2F49e19012-ac5c-48ad-8075-717c84412850%2F32cajvn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. From two points each on the opposite sides of a river, the
angles of elevation of the top of an 80 ft tree are 60º and 30º.
The points and the tree are in the same straight line, which is
perpendicular to the river. How wide is the river?
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