Right Triangle Inverse Trigonometric Functions

A triangle's angles add up to...

• 90 Degrees
• 180 Degrees
• 360 Degrees
• OVER 9000 Degrees

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

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

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

• 9.4
• 55.2
• 20.15
• 19.4