Finding Angles Using Trig Ratios Application

Front

What is the Sine ratio?

Back

Opposite side / Hypotenuse

Front

What is the Cosine ratio?

Back

Adjacent side / Hypotenuse

Front

What is the Tangent ratio?

Back

Opposite side / Adjacent side

Front

How do you find an angle using the Sine ratio?

Back

Use the inverse sine function: angle = sin^-1(Opposite/Hypotenuse)

Front

How do you find an angle using the Cosine ratio?

Back

Use the inverse cosine function: angle = cos^-1(Adjacent/Hypotenuse)

Front

How do you find an angle using the Tangent ratio?

Back

Use the inverse tangent function: angle = tan^-1(Opposite/Adjacent)

Front

If sin(θ) = 0.5, what is θ?

Back

θ = 30° or 150° (in degrees) when rounded to the nearest tenth.

Front

If cos(θ) = 0.6, what is θ?

Back

θ = 53.1° (in degrees) when rounded to the nearest tenth.

Front

If tan(θ) = 1, what is θ?

Back

θ = 45° (in degrees) when rounded to the nearest tenth.

Front

What is the relationship between the sides of a right triangle and its angles?

Back

The ratios of the lengths of the sides are constant for a given angle.