Front

What is the Unit Circle?

Back

The Unit Circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane. It is used to define trigonometric functions.

Tags

CCSS.HSF.TF.A.2

Front

What is the angle in degrees for 0 radians?

Back

0 degrees.

Tags

CCSS.HSF.TF.A.1

Front

What is the angle in degrees for π/2 radians?

Back

90 degrees.

Tags

CCSS.HSF.TF.A.1

Front

What is the angle in degrees for π radians?

Back

180 degrees.

Tags

CCSS.HSF.TF.A.1

Front

What is the angle in degrees for 3π/2 radians?

Back

270 degrees.

Tags

CCSS.HSF.TF.A.1

Front

What is the angle in degrees for 2π radians?

Back

360 degrees.

Tags

CCSS.HSF.TF.A.1

Front

How do you convert radians to degrees?

Back

Multiply the radian measure by 180/π.

Tags

CCSS.HSF.TF.A.1

Front

How do you convert degrees to radians?

Back

Multiply the degree measure by π/180.

Tags

CCSS.HSF.TF.A.1

Front

What are the coordinates of the point at 0 degrees on the Unit Circle?

Back

(1, 0).

Tags

CCSS.HSF.TF.A.2

Front

What are the coordinates of the point at 90 degrees on the Unit Circle?

Back

(0, 1).

Tags

CCSS.HSF.TF.A.2