Find Sides and Angles of Triangles with Sin Cos Tan

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4

• 55.2

• 20.15

• 19.4

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

Which trigonometric ratio is correct?

• cosC= adj/hyp

• sinC= adj/hyp

• tanC= adj/hyp

• tanC=adj/opp

Solve the right triangle.

• <B = 39^o, AB = 11.58, AC = 7.29

• <B = 39^o, AB = 7.29, AC = 11.58

• <B = 129^o, AB = 11.58, AC = 7.29

• <B = 129^o, AB = 7.29, AC = 11.58

Solve the right triangle.

• <A = 34^o, <C = 56^o, AC = 5.59

• <A = 56^o, <C = 34^o, AC = 5.59

• <A = 34^o, <C = 56^o, AC = 9.01

• <A = 56^o, <C = 34^o, AC = 9.01

Find the measure of the missing angle.

• 64^o

• 26^o

• 61^o

• .008^o

Find the measure of the missing angle.

• 49^o

• 50^o

• 41^o

• 33^o

Solve for the missing angle

• 50

• 0.053

• 36.9

• 95

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2