Right and Non-Right Triangle Trigonometry

To use the Pythagorean Theorem, we need...

• A triangle with 2 known angles

• A right triangle with 2 known angles

• A triangle with 2 known sides

• A right triangle with 2 known sides

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

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

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2

How do you know which side is the OPPOSITE?

• It is next to the right angle

• It is opposite the right angle

• It is opposite the theta

• It is the bottom leg of the triangle

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

Find the value of x

• 37.742

• 10.598

• 23.584

• 12.497