Trig Functions

Front

What is the definition of sine in a right triangle?

Back

Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of cosine in a right triangle?

Back

Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of tangent in a right triangle?

Back

Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the mnemonic used to remember trigonometric ratios?

Back

Soh Cah Toa.

Front

How do you calculate the sine of an angle?

Back

Sine of an angle = Opposite side / Hypotenuse.

Front

How do you calculate the cosine of an angle?

Back

Cosine of an angle = Adjacent side / Hypotenuse.

Front

How do you calculate the tangent of an angle?

Back

Tangent of an angle = Opposite side / Adjacent side.

Front

What is the sine of 30 degrees?

Back

The sine of 30 degrees is 1/2.

Front

What is the cosine of 60 degrees?

Back

The cosine of 60 degrees is 1/2.

Front

What is the tangent of 45 degrees?

Back

The tangent of 45 degrees is 1.