7.For the triangle described below, solve for B. Apply the rules regarding the use of significant digits to each angle and length after all computations are complete. A = 30°, b = 60 ft a = 20 ft

Trigonometry (MindTap Course List)
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ISBN:9781305652224
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Chapter2: Right Triangle Trigonometry
Section2.4: Applications
Problem 58PS: If the angle of elevation to the sun is 74.3 when a flagpole casts a shadow of 22.5 feet, what is...
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7.
7.For the triangle described below, solve for B.
Apply the rules regarding the use of significant digits to each angle
and length after all computations are complete.
A = 30°, b = 60
a = 20
'ft,
ft
a. B = 11.6°
B' = 168.4
or
b. B = 25.6°
c. B = 25.6°
B' = 168.4°
or
d. B = 11.6°
e. no solution
Transcribed Image Text:7.For the triangle described below, solve for B. Apply the rules regarding the use of significant digits to each angle and length after all computations are complete. A = 30°, b = 60 a = 20 'ft, ft a. B = 11.6° B' = 168.4 or b. B = 25.6° c. B = 25.6° B' = 168.4° or d. B = 11.6° e. no solution
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