SOH CAH TOA
What does Soh Cah Toa stand for?
Sine: opp/hyp, Cosine: adj/hyp, Tangent: opp/adj
Cos (26°) =
0.899
What type of trig function do we use when solving for a missing side of a right triangle? (regular or inverse)
Regular (sin, cos, tan)
What type of trig function do we use when solving for a missing angle of a right triangle? (regular or inverse)
Inverse (sin-1, cos-1, tan-1)
What is sin a? Leave your answer as a fraction.
3/5
Tan-1(1.6) =
58.0°
Set up (but don’t solve) an equation to find side c.
sin 60 = 10/c
Set up (but don’t solve) an equation to find angle a.
a= tan-1(18/24)
What is cos a? Leave your answer as a fraction.
4/5
Cos (47.5)
0.676
Set up (but don’t solve) an equation to find side a.
tan 60 = 10/a
Set up (but don’t solve) an equation to find angle b.
b= tan-1(24/18)
What is cos b? Leave your answer as a fraction.
3/5
Sin (8 & 2/13)=
0.142
Solve for side c. Round to the nearest tenth.
5.8
Solve for angle a. Round to the nearest tenth.
A=36.9°
What is tan b? Leave your answer as a fraction.
4/3
Tan (A) = 1.37
53.87°
Solve for side a. Round to the nearest tenth.
11.5
Solve for angle b. Round to the nearest tenth.
A=53.1°