Trig Ratios-Finding missing sides and angles.

Front

What are the three primary trigonometric ratios?

Back

Sine (sin), Cosine (cos), Tangent (tan).

Front

Define Sine in terms of a right triangle.

Back

Sine of an angle = Opposite side / Hypotenuse.

Front

Define Cosine in terms of a right triangle.

Back

Cosine of an angle = Adjacent side / Hypotenuse.

Front

Define Tangent in terms of a right triangle.

Back

Tangent of an angle = Opposite side / Adjacent side.

Front

What is the Pythagorean Theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

How do you find the missing angle using sine?

Back

Use the inverse sine function: angle = sin⁻¹(opposite/hypotenuse).

Front

How do you find the missing angle using cosine?

Back

Use the inverse cosine function: angle = cos⁻¹(adjacent/hypotenuse).

Front

How do you find the missing angle using tangent?

Back

Use the inverse tangent function: angle = tan⁻¹(opposite/adjacent).

Front

If sin(θ) = 0.5, what is θ?

Back

θ = 30° (rounded to the nearest degree).

Front

If cos(θ) = 0.6, what is θ?

Back

θ = 53.13° (rounded to the nearest hundredth).