Right Triangle Trig and Inverse Trig Functions

• A
• B
• C
• D

• A
• B
• C
• D

What is cos(A)?

• a/c

• b/c

• a/b

• b/a

What is Sin(A)?

• a/c

• b/c

• a/b

• b/a

Match the following definitions with the correct word

• Arcsine

• The ----------- of a positive number is the acute

  angle whose tangent is that number.

• Arccosine

• The --------- of a number between 0 and 1 is the

  acute angle whose sine is that number.

• Arctangent

• The ---------- of a number between 0 and 1 is the

  acute angle whose cosine is that number.

• A
• B
• C
• D

• A
• B
• C
• D

What would you use to solve for the missing angle?

• Regular Trig

• Inverse Trig

• Pythagorean Theorem

• All angles in a triangle add up to 180

• Special Right Triangles

Which inverse trig function would you use to find the measure of Angle A?

• inverse sine

• inverse cosine

• inverse tangent

• It is not possible to determine m<A

Which equation would you use to solve for the unknown angle?

• x = sin^–1(4/5)

• x = cos^–1(4/5)

• x = cos^–1(5/4)

• x = tan^–1(4/5)