1. A BUILDING WAS CONSTRUCTED ON A SLOPE SIDE WHICH MAKES AN ANGLE OF 68 DEGREES WITH THE VERTICAL. 60 METERS FROM THE FOOT OF A BUILDING, IT CREATES AN ANGLE OF ELEVATION OF 35 DEGREES FROM THE ROOF OF THE BUILDING. QUESTION: WHAT IS THE HEIGHT OF THE THE BUILDING?

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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A BUILDING WAS CONSTRUCTED ON A SLOPE SIDE WHICH MAKES AN ANGLE OF 68 DEGREES WITH THE VERTICAL. 60 METERS FROM THE FOOT OF A BUILDING, IT CREATES AN ANGLE OF ELEVATION OF 35 DEGREES FROM THE ROOF OF THE BUILDING. QUESTION: WHAT IS THE HEIGHT OF THE BUILDING?
SINE LAW:
b
d
KU
C
NOTE :
C
COSINE LAW:
$
a
sing sinß
=
으.
c²=a² +6²-2abcos C
6²=a²+ c² - 2accos &
a²=b²tc²-2bccos a
Cangle C
Sin C
WE USE SINE LAW IF THERE ARE
AT LEAST TWO SIDES WITH ONE
INCLUDED ANGLE.
WE USE COSINE LAW IF THERE ARE
TWO KNOWN SIDES WITH ONE UNKNOWN
ANGLE.
Transcribed Image Text:SINE LAW: b d KU C NOTE : C COSINE LAW: $ a sing sinß = 으. c²=a² +6²-2abcos C 6²=a²+ c² - 2accos & a²=b²tc²-2bccos a Cangle C Sin C WE USE SINE LAW IF THERE ARE AT LEAST TWO SIDES WITH ONE INCLUDED ANGLE. WE USE COSINE LAW IF THERE ARE TWO KNOWN SIDES WITH ONE UNKNOWN ANGLE.
A
BUILDING WAS CONSTRUCTED
ON A SLOPE SIDE WHICH MAKES
AN ANGLE OF 68 DEGREES WITH
THE
VERTICAL. 60 METERS FROM
THE FOOT OF A BUILDING, IT CREATES
AN ANGLE OF ELEVATION OF 35
DEGREES FROM THE ROOF OF THE
BUILDING.
QUESTION: WHAT IS THE HEIGHT
OF THE BUILDING?
Transcribed Image Text:A BUILDING WAS CONSTRUCTED ON A SLOPE SIDE WHICH MAKES AN ANGLE OF 68 DEGREES WITH THE VERTICAL. 60 METERS FROM THE FOOT OF A BUILDING, IT CREATES AN ANGLE OF ELEVATION OF 35 DEGREES FROM THE ROOF OF THE BUILDING. QUESTION: WHAT IS THE HEIGHT OF THE BUILDING?
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