Intro to Radians

What is the measure of an angle in radians if it subtends an arc of length 4 cm on a circle of radius 2 cm?

1. 3
2. 1
3. 4
4. 2

If an angle is given in degrees, how can it be converted to radians?

1. Subtract 180
2. Add 180
3. Multiply by 180/π
4. Multiply by π/180

What is the radian measure of a full circle?

1. 3π
2. 4π
3. 2π
4. π/2

In which quadrant does an angle with radian measure π/4 lie?

1. Fourth
2. Third
3. First
4. Second

What is the relationship between the radian measure and the radius of a circle?

1. Double
2. Triple
3. Half
4. Equal

Radians