Solving Right Triangles with Trigonometry

What does solving a right triangle mean?

• Calculating the perimeter of the triangle

• Determining all missing sides and angles

• Finding the area of the triangle

• Drawing the triangle accurately

Which mnemonic helps to remember trigonometric functions?

• ROYGBIV

• PEMDAS

• SOH-CAH-TOA

• DNA-RNA

What is the first step in solving for a missing side in a right triangle?

• Draw a more accurate triangle

• Calculate the area

• Label the sides with names

• Use the Pythagorean theorem

What does the tangent of an angle represent in a right triangle?

• Opposite over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

• Adjacent over Hypotenuse

How do you determine which trigonometric function to use?

• Choosing randomly for variety

• Based on the triangle's area

• Using the triangle's perimeter

• Depending on the sides and angles you have

How do you solve for a side when it's in the denominator of an equation?

• Divide both sides by the variable

• Add to both sides

• Multiply both sides by the variable

• Subtract from both sides

Which function would you use to find a side adjacent to a given angle?

• Sine

• Cosine

• Cotangent

• Tangent

What should you do if given a hypotenuse and need to find another side?

• Use only the Pythagorean theorem

• Pick any trigonometric function

• Choose a function that includes the hypotenuse and the known side

• Guess the length based on the hypotenuse

What is the sum of all angles in a triangle?

• 180 degrees

• 270 degrees

• 360 degrees

• 90 degrees

How can you find an angle if only the 90-degree angle is given?

• Use inverse trigonometric functions

• Add the sides together

• Multiply the sides

• Guess based on the triangle's shape