Locations after Rotations

How do you find the X value after rotating around a circle?

• Sin(x)

• Cos(x)

• Tan(x)

• 42

How do you find the y-value after rotating around a circle?

• Sin(x)

• Cos(x)

• Tan(x)

• 42

What is the exact ordered pair after rotating around 60^o

• (cos(60), sin(60))

• (sin(60), cos(60))

• (cos(60), tan(60))

• (6, 0)

What is the exact ordered pair after rotating for π/2 radians?

• (cos(π/2), sin(π/2))

• (sin(π/2), cos(π/2))

• (tan(π/2), cos(π/2))

• (42)

What is the exact location after rotating 210^o?

• (sin(210), cos(210))

• (cos(210), sin(210))

• (tan(210), sin(210))

• (1, 0)

What is the approximate location after rotating for 60 degrees?

• (.866, .5)

• (.5, .866)

• (-.5, -.866)

• (-.952, -.304)

What is the approximate location after rotating 3π/2 radians?

• (0, 1)

• (0, -1)

• (.997, .082)

• (.5, -.5)

What is the approximate location after rotating 11π/6 radians?

• (.866, -.5)

• (-.5, .866)

• (.995, .1)

• (.1, .995)

What is the x-value where the man is pointing (rotation of 60^o)?

• 1/2

• -1/2

• 0

• 1

How many radians in a full circle?

• π/2
• π
• 3π/2
• 2π