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Measure Angles Using Radian Measure

True or False: An angle measuring π radians is called a straight angle.

True or False: An acute angle in radians measures more than π/2 radians.

True or False: Supplementary angles in radians add up to π radians.

True or False: The sum of the interior angles in a triangle is always π radians.

True or False: Vertical angles are always equal in radians, just like in degrees.

True or False: An angle of 4π radians is equivalent to two full revolutions.

True or False: A reflex angle in radians measures more than 2π radians.

True or False: The circumference of a unit circle is 2π radians.

True or False: In a complete circle, there are 2π radians.

True or False: The exterior angle of a regular pentagon measures π/5 radians.