SohCahToa (1)

Front

What does SOH stand for?

Back

SOH stands for 'Sine = Opposite over Hypotenuse.' It is a mnemonic used to remember the sine function in trigonometry.

Front

What does CAH stand for?

Back

CAH stands for 'Cosine = Adjacent over Hypotenuse.' It is a mnemonic used to remember the cosine function in trigonometry.

Front

What does TOA stand for?

Back

TOA stands for 'Tangent = Opposite over Adjacent.' It is a mnemonic used to remember the tangent function in trigonometry.

Front

What is the sine of a 30-degree angle?

Back

The sine of a 30-degree angle is 1/2.

Front

What is the cosine of a 60-degree angle?

Back

The cosine of a 60-degree angle is 1/2.

Front

What is the tangent of a 45-degree angle?

Back

The tangent of a 45-degree angle is 1.

Front

If sin(θ) = 0.5, what is θ?

Back

θ = 30 degrees or 150 degrees.

Front

If cos(θ) = 0.5, what is θ?

Back

θ = 60 degrees or 300 degrees.

Front

If tan(θ) = 1, what is θ?

Back

θ = 45 degrees or 225 degrees.

Front

Solve for x: sin(θ) = x/10, if θ = 30 degrees.

Back

x = 5.