Trig Ratios-1

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 sine ratio 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 tangent ratio 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 mnemonic helps remember the trigonometric ratios?

Back

Soh Cah Toa.

Front

What is the cosine of angle P if the adjacent side is q and the hypotenuse is r?

Back

q/r.

Front

What is the sine of angle X if the opposite side is opp and the hypotenuse is hyp?

Back

Opp/hyp.

Front

Which side is adjacent to angle x in a right triangle with sides 1, 2, and 3?

Back

3.

Front

If the opposite side is 5 and the adjacent side is 12, what is the tangent of the angle?

Back

5/12.

Front

What is the relationship between sine and cosine for complementary angles?

Back

sin(90° - θ) = cos(θ).

Front

How do you find the hypotenuse using the Pythagorean theorem?

Back

Hypotenuse = √(opposite² + adjacent²).