Special Right Angle Trigonometry

The ratio 11/7 is: 

• sin α

• cos α

• tan α

• cot α

What is the value of "y" in the diagram below?

• 2.5

• 5

• 5√3

• 10

How would you find "x" in the diagram?

• Multiply 15 by 2.

• Divide 15 by 2.

• Multiply 15 by √3.

• Divide 15 by √3.

What is the value of "x" in the diagram below?

• 2.5

• 5

• 5√3

• 10

Determine the value of: sin(C)

• 7 / 25

• 24 / 25

• 25 / 7

• 24 / 7

Determine the value of: cos(C)

• 7 / 25

• 24 / 25

• 25 / 7

• 24 / 7

Determine the value of: tan(C)

• 7 / 25

• 24 / 25

• 25 / 7

• 24 / 7

What is the length of "opposite side" to angle B?

• 6

• 8

• 10

• not possible to determine

Consider angle B in the diagram below. What is the length of "adjacent side" to angle <B?

• 6

• 8

• 10

• not possible to determine

How would you find the value of the angle denoted by "?"

• Apply the inverse sine

• Apply the inverse cosine

• Apply the inverse tangent

• Apply the Pythagorean Theorem