5/6 Flashcard: Trigonometric Ratios and the Unit Circle

Front

Convert 4π/3 radians to degrees:

Back

240°

Front

Use inverse trigonometric ratios (SOH CAH TOA) to find the missing angle if sin(x) = 0.5. What is x?

Back

30°

Front

Find the exact value for sin(30°):

Back

1/2

Front

Choose the correct ratio to solve for x if the opposite side is 14 and the angle is 33°. What is the correct trigonometric ratio?

Back

sin(33°) = x/14

Front

Convert 150° to radians:

Back

5π/6

Front

What is the definition of the unit circle?

Back

A circle with a radius of 1 centered at the origin of a coordinate plane.

Front

What is the sine of an angle in a right triangle?

Back

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

Front

What is the cosine of an angle in a right triangle?

Back

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

Front

What is the tangent of an angle in a right triangle?

Back

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

Front

What is the value of cos(0°)?

Back

1