A pole stands on a plane which makes an angle of 15 degrees with the horizontal. A wire from the top of the pole is anchored on a point 8m from the foot of the pole. If the angle between the wire and the plane is 30 degrees, find the length (m) of the wire.
A pole stands on a plane which makes an angle of 15 degrees with the horizontal. A wire from the top of the pole is anchored on a point 8m from the foot of the pole. If the angle between the wire and the plane is 30 degrees, find the length (m) of the wire.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter4: Quadrilaterals
Section4.1: Properties Of A Parallelogram
Problem 41E: The following problem is based on the Parallelogram Law. In the scaled drawing, each unit...
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Question
1. 8. A pole stands on a plane which makes an angle of 15 degrees
with the horizontal. A wire from the top of the pole is anchored
on a point 8m from the foot of the pole. If the angle between
the wire and the plane is 30 degrees, find the length (m) of the
wire.
2. A tower 30.5 m high is situated on the bank of a river. The
angle of depression of an object on the opposite bank of the
river is 43°. Find the width of the river in meters.
3. The area of a triangle is 8346 sq.m. and two of its interior
angles are 37°25’ and 56°17’ respectively. Caclulate the length
(m) of the longest side.
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