Trig Ratios Practice

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 sine of an angle is 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 cosine of an angle is 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 tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.

Front

How can you remember the trigonometric ratios?

Back

Use the mnemonic 'Soh Cah Toa': Soh = sin = opposite/hypotenuse, Cah = cos = adjacent/hypotenuse, Toa = tan = opposite/adjacent.

Front

If sin(37) = x/14, how do you solve for x?

Back

Multiply both sides by 14: x = 14 * sin(37).

Front

If cos(37) = x/14, how do you solve for x?

Back

Multiply both sides by 14: x = 14 * cos(37).

Front

What is the value of sin(45 degrees)?

Back

sin(45 degrees) = @@rac{ oot{2}}{2}@@.

Front

What is the value of cos(45 degrees)?

Back

cos(45 degrees) = @@rac{ oot{2}}{2}@@.

Front

What is the value of tan(45 degrees)?

Back

tan(45 degrees) = 1.