finding a missing angle of a right triangle. example #1 first: figure out what trig ratio to use in...
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Finding a Missing Angle of a Right Triangle
EXAMPLE #1
First: figure out what trig ratio to use in regards to the angle. Opposite and Adjacent
O,A means we use Tan!
Second: set up the tangent ratio.
Third: use the inverse key (2nd key).
x
27
33
33
27Tanx
3.3933
271
Tan
EXAMPLE #2 First: figure out what
trig ratio to use in regards to the angle. Opposite and Hypotenuse
O,H means we use Sin!
Second: set up the sine ratio.
Third: use the inverse key (2nd key).
x
4533
45
33sin x
2.4745
33sin 1
EXAMPLE #3 First: figure out what
trig ratio to use in regards to the angle. Adjacent and Hypotenuse
A,H means we use Cos!
Second: set up the cosine ratio.
Third: use the inverse key (2nd key).
x
4826
48
26cos x
2.5748
26cos 1
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