Answer:
D.
1.) 18.7° = 18°42'0"
2.) 42.85° = 42°51'0"
3.) 105.44° = 105°26'24"
E.
1.) sinθ = 0.5923
θ = 36.32°
2.) cosθ = 0.3947
θ = 66.75°
3.) tanθ = 1.8
θ = 60.95°
Let's analyze:
1.) sin15 = x/25
x = 6.47
tan15 = x/y
tan15 = 6.47/y
y = 24.15
2.) sin30 = 11/z
z = 22
tan30 = 11/x
3.) tan18 = y/18
y = 5.85
sin18 = y/z
z = 18.93
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Answers & Comments
Answer:
D.
1.) 18.7° = 18°42'0"
2.) 42.85° = 42°51'0"
3.) 105.44° = 105°26'24"
E.
1.) sinθ = 0.5923
θ = 36.32°
2.) cosθ = 0.3947
θ = 66.75°
3.) tanθ = 1.8
θ = 60.95°
Let's analyze:
1.) sin15 = x/25
x = 6.47
tan15 = x/y
tan15 = 6.47/y
y = 24.15
2.) sin30 = 11/z
z = 22
tan30 = 11/x
3.) tan18 = y/18
y = 5.85
sin18 = y/z
z = 18.93