Trigonometry: Finding Missing Angles

What is the primary focus of this trigonometry lesson?

• Finding missing sides using trigonometry

• Learning about calculus

• Understanding the Pythagorean theorem

• Finding missing angles using trigonometry

What does SOHCAHTOA help us remember?

• The properties of triangles

• The order of operations

• The ratios for each trig function

• The steps to solve quadratic equations

When solving for angle X using sine, which sides are labeled?

• Adjacent and opposite

• Opposite and hypotenuse

• Adjacent and hypotenuse

• Opposite and adjacent

What is the inverse function used to solve for angle X?

• Inverse tangent

• Inverse cotangent

• Inverse sine

• Inverse cosine

Why is it important to ensure the calculator is in degree mode?

• To simplify the calculation process

• To avoid errors in multiplication

• To convert radians to degrees

• To ensure angles are calculated in degrees

What is the result of using inverse sine on sine of X?

• It squares the angle

• It cancels out, leaving just X

• It converts the angle to radians

• It doubles the angle

In the example problem, what is the hypotenuse when solving for angle X?

• 17

• 11

• 15

• 8

Which trigonometric function is used to solve for angle Y?

• Sine

• Cosine

• Cotangent

• Tangent

What changes when switching from solving for angle X to angle Y?

• The trigonometric function remains the same

• The angle becomes a right angle

• The opposite and adjacent sides switch

• The hypotenuse changes

What is an alternative method to find angle Y after solving for angle X?

• Using the Pythagorean theorem

• Using the law of cosines

• Subtracting from 180 degrees

• Using the law of sines