Trig Ratios

Front

What are the three primary trigonometric ratios?

Back

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

Front

What does the sine ratio represent in a right triangle?

Back

The ratio of the length of the opposite side to the length of the hypotenuse.

Front

What does the cosine ratio represent in a right triangle?

Back

The ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What does the tangent ratio represent in a right triangle?

Back

The ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the mnemonic to remember the trigonometric ratios?

Back

Soh Cah Toa.

Front

In a right triangle, if angle A is 30 degrees, what is sin(A)?

Back

1/2.

Front

In a right triangle, if angle A is 45 degrees, what is tan(A)?

Back

1.

Front

If the opposite side is 3 and the hypotenuse is 5, what is sin(A)?

Back

3/5.

Front

If the adjacent side is 4 and the hypotenuse is 5, what is cos(A)?

Back

4/5.

Front

If the opposite side is 6 and the adjacent side is 8, what is tan(A)?

Back

6/8 or 3/4.