Sohcahtoa Inverse

What is cos B?

• a/b

• a/c

• b/c

• c/a

What trig ratio would be used to solve for x?

• Sine

• Cosine

• Tangent

How would you set up an equation for x?

• sin 29 = 8/x

• sin 29 = x/8

What is the length of x?

• 7.43

• 16.50

• 3.88

• 4.59

Find A, B, and C.

angle A = ​ ​ (a)  

angle B = ​ (b)  

angle C = (c)  

• 28.3

• 90

• 61.69

• 32.84

• 57.16

• 37.17

• 52.83

• 60

• 30

Match the following definitions with the correct word

• Arccosine

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

  angle whose tangent is that number.

• Arcsine

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

  acute angle whose cosine is that number.

• Arctangent

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

  acute angle whose sine is that number.

To solve for the hypotenuse in the last problem, this is the equation that would be used. What is the value of r?

• 12.37

• 24.29

• 0.034

• 29.24

If you are given the opposite and hypotenuse lengths of a right triangle, what trig function is used to find the missing angle?

• sine

• cosine

• inverse sine

• inverse cosine

Which equation is used to solve for x?

• x = cos (30/40)

• x = inverse cos (30/40)

• x = sin (30/40)

• x = inverse sin (30/40)

Which equation is used to solve for x?

• sin 18 = x/17

• cos 18 = x/17

• inverse sin 18 = x/17

• inverse cos 18 = x/17