Right Triangle Trig and the Unit Circle

What is the value of x?

• 17.30

• 11.33

• 0.06

• 23.82

Relative to angle B, what is side AB?

• Opposite

• Adjacent

• Hypotenuse

What is the value of x?

• 9.17

• 98.13

• 0.11

• 26.69

Find the measure of the indicated angle.

Solve
cos²θ = ½ 
on θ∈[0, 2π)

• θ = π /4, 7π /4

• θ = π /4, 3π /4

• θ = 3π /4, 5π /4

• θ = π /4, 3π /4, 5π /4, 7π /4

• 0

• 1

• -1