8.1 & 8.2 - Radians, Arc Length, and Unit Circle

Front

What is the radian measure of a central angle that intercepts an arc of length equal to the radius of the circle?

Back

1 radian.

Front

How do you convert degrees to radians?

Back

Front

What is the circumference of a circle with radius r?

Back

Front

What is the relationship between arc length (s), radius (r), and angle in radians (θ)?

Back

Front

What is the sine of 90 degrees?

Back

1.

Front

What is the cosine of 0 degrees?

Back

1.

Front

What is the sine of 180 degrees?

Back

0.

Front

What is the cosine of 180 degrees?

Back

-1.

Front

What is the sine of 30 degrees?

Back

Front

What is the cosine of 30 degrees?

Back