G11 L9.1

Draw a positive angle of 60 degrees.

• A vertical line with a ray extending downwards at a 60 degree angle.

• A horizontal line with a ray extending upwards at a 60 degree angle.

• A horizontal line with a ray extending downwards at a 60 degree angle.

• A vertical line with a ray extending upwards at a 120 degree angle.

Draw a negative angle of 120 degrees.

• Counterclockwise

• 180 degrees

• 90 degrees

• Clockwise

Calculate the coterminal angle of 45 degrees.

• 90

• 180

• 270

• 45

Calculate the coterminal angle of -210 degrees.

• -30

• -390

• -570

• 150

Convert 30 degrees to radians.

• 0.5236

• 0.523

• 0.5235

• 0.5237

Convert 5 radians to degrees.

• 57.2958

• 180

• 360

• 286.4789

Convert 180 degrees to radians.

• 3.141592653589793

• 1.5707963267948966

• 6.283185307179586

• 0.7853981633974483

Convert 3.14 radians to degrees.

• 90

• 270

• 360

• 180

Calculate the arc length of a circle with radius 5 cm and central angle of 60 degrees.

• 5.24 cm

• 2.62 cm

• 10.48 cm

• 3.14 cm

Calculate the arc length of a circle with radius 8 m and central angle of 120 degrees.

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