Trig Ratios in Right Triangles

Front

What is the ratio for TAN X?

Back

Opp/Adj

Front

What is the ratio for SIN X?

Back

Opp/Hyp

Front

If you are given the hypotenuse and an adjacent side, which trig function should you use?

Back

Cosine

Front

What is the mnemonic to remember trigonometric ratios?

Back

Soh Cah Toa

Front

What is the ratio for COS X?

Back

Adj/Hyp

Front

Define the term 'hypotenuse' in a right triangle.

Back

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

Front

What does 'adjacent side' refer to in a right triangle?

Back

The side next to the angle of interest, excluding the hypotenuse.

Front

What is the relationship between sine, cosine, and tangent?

Back

Tangent is the ratio of sine to cosine: Tan X = Sin X / Cos X.

Front

How can you find the sine of an angle in a right triangle?

Back

Sine is found by dividing the length of the opposite side by the hypotenuse.

Front

What is the formula for finding the cosine of an angle?

Back

Cosine is found by dividing the length of the adjacent side by the hypotenuse.