Finding Angles with Trig

Find the missing angle marked with x. Round your answer to 3 s.f.

Find the missing angle marked with c. Round your answer to 3 s.f.

Find the missing angle marked with d. Round your answer to 3 s.f.

Find the missing angle marked with m. Round your answer to 3 s.f.

Which trig function would help you solve for the missing angle?

• sine

• cosine

• tangent

• pythagorean theorem

Which of the following would you use to find the measure of an angle?

• Pythagorean theorem

• Sin, Cos, or Tan

• Sin^-1, Cos^-1, or Tan^-1

• Chord-Chord Product Theorem

What is the value of theta? sin(θ) = cos(40)

• 30

• 40

• 50

• 60

• 4π/3

• 7π/6

• 3π/4

• 5π/4

• COS(60)

• COS(30)

• SIN(60)

Find the value of each angle to the nearest tenth of a degree.
Tan(R) = 0.2623

• 18

• 55.0

• 14.7

• Don't pick green