Solve for Angles Using Trig

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 32°

• 44°

• 61°

• 50°

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 33°

• 49°

• 39°

• 41°

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

If cosΘ = -1/2, what does theta equal? There are two answers, put the smaller answer first (a)   and ​ (b)  

• 240

• 330

• 45

• 60

• 360

• 120

• 135

• 345

• 210

• 225

Answer explanation

cosine correlates with x values and there are only two points on the unit circle with an x value of -1/2 and they are 240 and 120

Mathematical Equivalence

ON

Tags

CCSS.MATH.CONTENT.HSG.SRT.C.8

Solve for Theta to the nearest degree

Mathematical Equivalence

ON

• COS(60)

• COS(30)

• SIN(60)

If we have a right triangle with the hypotenuse and adjacent side given, which trig function should we use to solve for the angle?

• Sine

• Cosine

• Tangent

• Pythagorean Theorem

What trig function best solves for angle y?

• Inverse Sine

• Sine

• Inverse Cosine

• Tangent

Directions: Enter your answer in the space provided. Use the numbers and symbols to enter your answer. The figure represents the side view of a rectangular frame for metal shelves. Two diagonal braces support the frame. Write an equation that can be used to determine the measure of angle θ.

• tan

• x

• 2

• sin

• cos