Trig Ratios

Front

What is the definition of cosine in a right triangle?

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of sine in a right triangle?

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of tangent in a right triangle?

Back

Tangent is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What mnemonic helps remember the trigonometric ratios?

Back

Soh Cah Toa.

Front

If you know the hypotenuse and the opposite side, which trig function do you use?

Back

Sine.

Front

If you know the hypotenuse and the adjacent side, which trig function do you use?

Back

Cosine.

Front

If you know the two legs of a right triangle, which trig function do you use?

Back

Tangent.

Front

What is the opposite side in relation to angle C?

Back

The side opposite to angle C.

Front

What is the adjacent side in relation to angle C?

Back

The side next to angle C that is not the hypotenuse.

Front

What is the hypotenuse in a right triangle?

Back

The longest side of the triangle, opposite the right angle.