Exploring Right Triangle Trigonometry: Sin, Cos, Tan

What are the three main trigonometric functions introduced?

• Sine, Square, and Tangent

• Sine, Cosine, and Tangent

• Sine, Cosine, and Circle

• Square, Circle, and Triangle

What is the primary input for trigonometric functions?

• An angle

• A number

• A triangle

• A square

What mnemonic is used to remember the trigonometric ratios?

• HOTASCOH

• COSAHTOH

• TOAHCOHS

• SOHCAHTOA

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

• Adjacent over Hypotenuse

• Opposite over Adjacent

• Opposite over Hypotenuse

• Hypotenuse over Opposite

How can you solve for an unknown side in a right triangle using trigonometry?

• Using algebraic expressions

• Using trigonometric ratios

• Using Pythagoras' theorem

• By measuring the sides

What should you do if your calculator gives a result in Radian mode when you expected it in Degree mode?

• Multiply by 180

• Divide by 180

• Switch the calculator to Degree mode

• It doesn't matter which mode you use

What is the cosine of an angle in a right triangle?

• Hypotenuse over Opposite

• Adjacent over Opposite

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

What is the tangent of an angle in a right triangle?

• Opposite over Hypotenuse

• Adjacent over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

How do you find the length of an unknown side in a right triangle using trigonometry?

• By using SOHCAHTOA

• Using only Pythagoras' theorem

• By guessing the length

• By drawing the triangle larger

Why are trigonometric ratios consistent across similar right triangles?

• Because of the triangle's angles

• Due to the triangle's area

• Due to the triangle's color

• Because of the triangle's perimeter