Trigonometric Ratios, 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 formula to find the missing side using Sine?

Back

sin(angle) = Opposite / Hypotenuse

Front

What is the formula to find the missing side using Cosine?

Back

cos(angle) = Adjacent / Hypotenuse

Front

What is the formula to find the missing side using Tangent?

Back

tan(angle) = Opposite / Adjacent

Front

How do you find the missing angle using Sine?

Back

angle = sin^(-1)(Opposite / Hypotenuse) or angle = arcsin(Opposite / Hypotenuse)

Front

How do you find the missing angle using Cosine?

Back

angle = cos^(-1)(Adjacent / Hypotenuse) or angle = arccos(Adjacent / Hypotenuse)

Front

How do you find the missing angle using Tangent?

Back

angle = tan^(-1)(Opposite / Adjacent) or angle = arctan(Opposite / Adjacent)