Trig ratios

Front

What are the three primary trigonometric ratios?

Back

Sine (sin), Cosine (cos), Tangent (tan)

Front

Define the sine ratio in a right triangle.

Back

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

Front

Define the cosine ratio in a right triangle.

Back

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

Front

Define the tangent ratio in a right triangle.

Back

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

Front

How do you identify the opposite side in a right triangle?

Back

The opposite side is the side opposite the angle of interest (Theta).

Front

How do you identify the adjacent side in a right triangle?

Back

The adjacent side is the side next to the angle of interest (Theta) that is not the hypotenuse.

Front

What is the hypotenuse in a right triangle?

Back

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

Front

If sin(Theta) = 0.5, what is the angle Theta?

Back

Theta = 30 degrees.

Front

If cos(Theta) = 0.6, what is the angle Theta?

Back

Theta = 53.13 degrees.

Front

If tan(Theta) = 1, what is the angle Theta?

Back

Theta = 45 degrees.